Merge branch 'master' into for-next

Conflicts:
	MAINTAINERS
	arch/arm/mach-omap2/pm24xx.c
	drivers/scsi/bfa/bfa_fcpim.c

Needed to update to apply fixes for which the old branch was too
outdated.

101 files changed, 783 insertions, 902 deletions

diff --git a/drivers/media/IR/ir-keytable.c b/drivers/media/IR/ir-keytable.c
index 9186b45..f60107c 100644
--- a/drivers/media/IR/ir-keytable.c
+++ b/drivers/media/IR/ir-keytable.c
@@ -325,9 +325,9 @@ static int ir_setkeytable(struct ir_input_dev *ir_dev,
 static unsigned int ir_lookup_by_scancode(const struct ir_scancode_table *rc_tab,
 					  unsigned int scancode)
 {
-	unsigned int start = 0;
-	unsigned int end = rc_tab->len - 1;
-	unsigned int mid;
+	int start = 0;
+	int end = rc_tab->len - 1;
+	int mid;
 
 	while (start <= end) {
 		mid = (start + end) / 2;
@@ -389,6 +389,8 @@ static int ir_getkeycode(struct input_dev *dev,
 	ke->len = sizeof(entry->scancode);
 	memcpy(ke->scancode, &entry->scancode, sizeof(entry->scancode));
 
+	retval = 0;
+
 out:
 	spin_unlock_irqrestore(&rc_tab->lock, flags);
 	return retval;
diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig
index bad2ced..a28541b 100644
--- a/drivers/media/Kconfig
+++ b/drivers/media/Kconfig
@@ -19,7 +19,6 @@ comment "Multimedia core support"
 
 config VIDEO_DEV
 	tristate "Video For Linux"
-	depends on BKL # used in many drivers for ioctl handling, need to kill
 	---help---
 	  V4L core support for video capture and overlay devices, webcams and
 	  AM/FM radio cards.
diff --git a/drivers/media/common/saa7146_hlp.c b/drivers/media/common/saa7146_hlp.c
index 05bde9c..1d1d8d2 100644
--- a/drivers/media/common/saa7146_hlp.c
+++ b/drivers/media/common/saa7146_hlp.c
@@ -558,7 +558,7 @@ static void saa7146_set_window(struct saa7146_dev *dev, int width, int height, e
 static void saa7146_set_position(struct saa7146_dev *dev, int w_x, int w_y, int w_height, enum v4l2_field field, u32 pixelformat)
 {
 	struct saa7146_vv *vv = dev->vv_data;
-	struct saa7146_format *sfmt = format_by_fourcc(dev, pixelformat);
+	struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev, pixelformat);
 
 	int b_depth = vv->ov_fmt->depth;
 	int b_bpl = vv->ov_fb.fmt.bytesperline;
@@ -702,7 +702,7 @@ static int calculate_video_dma_grab_packed(struct saa7146_dev* dev, struct saa71
 	struct saa7146_vv *vv = dev->vv_data;
 	struct saa7146_video_dma vdma1;
 
-	struct saa7146_format *sfmt = format_by_fourcc(dev,buf->fmt->pixelformat);
+	struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat);
 
 	int width = buf->fmt->width;
 	int height = buf->fmt->height;
@@ -827,7 +827,7 @@ static int calculate_video_dma_grab_planar(struct saa7146_dev* dev, struct saa71
 	struct saa7146_video_dma vdma2;
 	struct saa7146_video_dma vdma3;
 
-	struct saa7146_format *sfmt = format_by_fourcc(dev,buf->fmt->pixelformat);
+	struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat);
 
 	int width = buf->fmt->width;
 	int height = buf->fmt->height;
@@ -994,7 +994,7 @@ static void program_capture_engine(struct saa7146_dev *dev, int planar)
 
 void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next)
 {
-	struct saa7146_format *sfmt = format_by_fourcc(dev,buf->fmt->pixelformat);
+	struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat);
 	struct saa7146_vv *vv = dev->vv_data;
 	u32 vdma1_prot_addr;
 
diff --git a/drivers/media/common/saa7146_i2c.c b/drivers/media/common/saa7146_i2c.c
index 3d88542..74ee172 100644
--- a/drivers/media/common/saa7146_i2c.c
+++ b/drivers/media/common/saa7146_i2c.c
@@ -391,7 +391,6 @@ static int saa7146_i2c_xfer(struct i2c_adapter* adapter, struct i2c_msg *msg, in
 
 /*****************************************************************************/
 /* i2c-adapter helper functions                                              */
-#include <linux/i2c-id.h>
 
 /* exported algorithm data */
 static struct i2c_algorithm saa7146_algo = {
diff --git a/drivers/media/common/saa7146_video.c b/drivers/media/common/saa7146_video.c
index 741c573..d246910 100644
--- a/drivers/media/common/saa7146_video.c
+++ b/drivers/media/common/saa7146_video.c
@@ -84,7 +84,7 @@ static struct saa7146_format formats[] = {
 
 static int NUM_FORMATS = sizeof(formats)/sizeof(struct saa7146_format);
 
-struct saa7146_format* format_by_fourcc(struct saa7146_dev *dev, int fourcc)
+struct saa7146_format* saa7146_format_by_fourcc(struct saa7146_dev *dev, int fourcc)
 {
 	int i, j = NUM_FORMATS;
 
@@ -266,7 +266,7 @@ static int saa7146_pgtable_build(struct saa7146_dev *dev, struct saa7146_buf *bu
 	struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
 	struct scatterlist *list = dma->sglist;
 	int length = dma->sglen;
-	struct saa7146_format *sfmt = format_by_fourcc(dev,buf->fmt->pixelformat);
+	struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat);
 
 	DEB_EE(("dev:%p, buf:%p, sg_len:%d\n",dev,buf,length));
 
@@ -408,7 +408,7 @@ static int video_begin(struct saa7146_fh *fh)
 		}
 	}
 
-	fmt = format_by_fourcc(dev,fh->video_fmt.pixelformat);
+	fmt = saa7146_format_by_fourcc(dev,fh->video_fmt.pixelformat);
 	/* we need to have a valid format set here */
 	BUG_ON(NULL == fmt);
 
@@ -460,7 +460,7 @@ static int video_end(struct saa7146_fh *fh, struct file *file)
 		return -EBUSY;
 	}
 
-	fmt = format_by_fourcc(dev,fh->video_fmt.pixelformat);
+	fmt = saa7146_format_by_fourcc(dev,fh->video_fmt.pixelformat);
 	/* we need to have a valid format set here */
 	BUG_ON(NULL == fmt);
 
@@ -536,7 +536,7 @@ static int vidioc_s_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *f
 		return -EPERM;
 
 	/* check args */
-	fmt = format_by_fourcc(dev, fb->fmt.pixelformat);
+	fmt = saa7146_format_by_fourcc(dev, fb->fmt.pixelformat);
 	if (NULL == fmt)
 		return -EINVAL;
 
@@ -760,7 +760,7 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_forma
 
 	DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh));
 
-	fmt = format_by_fourcc(dev, f->fmt.pix.pixelformat);
+	fmt = saa7146_format_by_fourcc(dev, f->fmt.pix.pixelformat);
 	if (NULL == fmt)
 		return -EINVAL;
 
@@ -1264,7 +1264,7 @@ static int buffer_prepare(struct videobuf_queue *q,
 		buf->fmt       = &fh->video_fmt;
 		buf->vb.field  = fh->video_fmt.field;
 
-		sfmt = format_by_fourcc(dev,buf->fmt->pixelformat);
+		sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat);
 
 		release_all_pagetables(dev, buf);
 		if( 0 != IS_PLANAR(sfmt->trans)) {
@@ -1378,7 +1378,7 @@ static int video_open(struct saa7146_dev *dev, struct file *file)
 	fh->video_fmt.pixelformat = V4L2_PIX_FMT_BGR24;
 	fh->video_fmt.bytesperline = 0;
 	fh->video_fmt.field = V4L2_FIELD_ANY;
-	sfmt = format_by_fourcc(dev,fh->video_fmt.pixelformat);
+	sfmt = saa7146_format_by_fourcc(dev,fh->video_fmt.pixelformat);
 	fh->video_fmt.sizeimage = (fh->video_fmt.width * fh->video_fmt.height * sfmt->depth)/8;
 
 	videobuf_queue_sg_init(&fh->video_q, &video_qops,
diff --git a/drivers/media/common/tuners/Kconfig b/drivers/media/common/tuners/Kconfig
index 2385e6c..78b0895 100644
--- a/drivers/media/common/tuners/Kconfig
+++ b/drivers/media/common/tuners/Kconfig
@@ -31,7 +31,7 @@ config MEDIA_TUNER
 	select MEDIA_TUNER_TDA9887 if !MEDIA_TUNER_CUSTOMISE
 	select MEDIA_TUNER_MC44S803 if !MEDIA_TUNER_CUSTOMISE
 
-menuconfig MEDIA_TUNER_CUSTOMISE
+config MEDIA_TUNER_CUSTOMISE
 	bool "Customize analog and hybrid tuner modules to build"
 	depends on MEDIA_TUNER
 	default y if EMBEDDED
@@ -44,7 +44,8 @@ menuconfig MEDIA_TUNER_CUSTOMISE
 
 	  If unsure say N.
 
-if MEDIA_TUNER_CUSTOMISE
+menu "Customize TV tuners"
+	visible if MEDIA_TUNER_CUSTOMISE
 
 config MEDIA_TUNER_SIMPLE
 	tristate "Simple tuner support"
@@ -185,5 +186,4 @@ config MEDIA_TUNER_TDA18218
 	default m if MEDIA_TUNER_CUSTOMISE
 	help
 	  NXP TDA18218 silicon tuner driver.
-
-endif # MEDIA_TUNER_CUSTOMISE
+endmenu
diff --git a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
index 4d0646d..7ea517b 100644
--- a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
+++ b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
@@ -36,7 +36,6 @@
 #include <linux/delay.h>
 #include <linux/spinlock.h>
 #include <linux/sched.h>
-#include <linux/smp_lock.h>
 #include <linux/kthread.h>
 
 #include "dvb_ca_en50221.h"
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index 1589d5a..cad6634 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -36,7 +36,6 @@
 #include <linux/list.h>
 #include <linux/freezer.h>
 #include <linux/jiffies.h>
-#include <linux/smp_lock.h>
 #include <linux/kthread.h>
 #include <asm/processor.h>
 
diff --git a/drivers/media/dvb/frontends/Kconfig b/drivers/media/dvb/frontends/Kconfig
index e9062b0..96b2701 100644
--- a/drivers/media/dvb/frontends/Kconfig
+++ b/drivers/media/dvb/frontends/Kconfig
@@ -12,9 +12,8 @@ config DVB_FE_CUSTOMISE
 
 	  If unsure say N.
 
-if DVB_FE_CUSTOMISE
-
 menu "Customise DVB Frontends"
+	visible if DVB_FE_CUSTOMISE
 
 comment "Multistandard (satellite) frontends"
 	depends on DVB_CORE
@@ -619,5 +618,3 @@ config DVB_DUMMY_FE
 	tristate "Dummy frontend driver"
 	default n
 endmenu
-
-endif
diff --git a/drivers/media/dvb/frontends/dibx000_common.c b/drivers/media/dvb/frontends/dibx000_common.c
index a499102..2311c0a 100644
--- a/drivers/media/dvb/frontends/dibx000_common.c
+++ b/drivers/media/dvb/frontends/dibx000_common.c
@@ -130,6 +130,7 @@ static int i2c_adapter_init(struct i2c_adapter *i2c_adap,
 			    struct dibx000_i2c_master *mst)
 {
 	strncpy(i2c_adap->name, name, sizeof(i2c_adap->name));
+	i2c_adap->algo = algo;
 	i2c_adap->algo_data = NULL;
 	i2c_set_adapdata(i2c_adap, mst);
 	if (i2c_add_adapter(i2c_adap) < 0)
diff --git a/drivers/media/dvb/ngene/ngene-core.c b/drivers/media/dvb/ngene/ngene-core.c
index 4caeb16..3a7ef71 100644
--- a/drivers/media/dvb/ngene/ngene-core.c
+++ b/drivers/media/dvb/ngene/ngene-core.c
@@ -34,7 +34,6 @@
 #include <linux/io.h>
 #include <asm/div64.h>
 #include <linux/pci.h>
-#include <linux/smp_lock.h>
 #include <linux/timer.h>
 #include <linux/byteorder/generic.h>
 #include <linux/firmware.h>
diff --git a/drivers/media/dvb/ngene/ngene-dvb.c b/drivers/media/dvb/ngene/ngene-dvb.c
index 48f980b..3832e59 100644
--- a/drivers/media/dvb/ngene/ngene-dvb.c
+++ b/drivers/media/dvb/ngene/ngene-dvb.c
@@ -35,7 +35,6 @@
 #include <linux/io.h>
 #include <asm/div64.h>
 #include <linux/pci.h>
-#include <linux/smp_lock.h>
 #include <linux/timer.h>
 #include <linux/byteorder/generic.h>
 #include <linux/firmware.h>
diff --git a/drivers/media/dvb/ngene/ngene-i2c.c b/drivers/media/dvb/ngene/ngene-i2c.c
index c3ae956..d28554f 100644
--- a/drivers/media/dvb/ngene/ngene-i2c.c
+++ b/drivers/media/dvb/ngene/ngene-i2c.c
@@ -37,7 +37,6 @@
 #include <asm/div64.h>
 #include <linux/pci.h>
 #include <linux/pci_ids.h>
-#include <linux/smp_lock.h>
 #include <linux/timer.h>
 #include <linux/byteorder/generic.h>
 #include <linux/firmware.h>
diff --git a/drivers/media/radio/radio-aimslab.c b/drivers/media/radio/radio-aimslab.c
index 5bf4985..05e832f 100644
--- a/drivers/media/radio/radio-aimslab.c
+++ b/drivers/media/radio/radio-aimslab.c
@@ -361,7 +361,7 @@ static int vidioc_s_audio(struct file *file, void *priv,
 
 static const struct v4l2_file_operations rtrack_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 };
 
 static const struct v4l2_ioctl_ops rtrack_ioctl_ops = {
@@ -412,13 +412,6 @@ static int __init rtrack_init(void)
 	rt->vdev.release = video_device_release_empty;
 	video_set_drvdata(&rt->vdev, rt);
 
-	if (video_register_device(&rt->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
-		v4l2_device_unregister(&rt->v4l2_dev);
-		release_region(rt->io, 2);
-		return -EINVAL;
-	}
-	v4l2_info(v4l2_dev, "AIMSlab RadioTrack/RadioReveal card driver.\n");
-
 	/* Set up the I/O locking */
 
 	mutex_init(&rt->lock);
@@ -430,6 +423,13 @@ static int __init rtrack_init(void)
 	sleep_delay(2000000);	/* make sure it's totally down	*/
 	outb(0xc0, rt->io);		/* steady volume, mute card	*/
 
+	if (video_register_device(&rt->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+		v4l2_device_unregister(&rt->v4l2_dev);
+		release_region(rt->io, 2);
+		return -EINVAL;
+	}
+	v4l2_info(v4l2_dev, "AIMSlab RadioTrack/RadioReveal card driver.\n");
+
 	return 0;
 }
 
diff --git a/drivers/media/radio/radio-aztech.c b/drivers/media/radio/radio-aztech.c
index c223113..dd8a6ab 100644
--- a/drivers/media/radio/radio-aztech.c
+++ b/drivers/media/radio/radio-aztech.c
@@ -324,7 +324,7 @@ static int vidioc_s_ctrl(struct file *file, void *priv,
 
 static const struct v4l2_file_operations aztech_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 };
 
 static const struct v4l2_ioctl_ops aztech_ioctl_ops = {
@@ -375,6 +375,8 @@ static int __init aztech_init(void)
 	az->vdev.ioctl_ops = &aztech_ioctl_ops;
 	az->vdev.release = video_device_release_empty;
 	video_set_drvdata(&az->vdev, az);
+	/* mute card - prevents noisy bootups */
+	outb(0, az->io);
 
 	if (video_register_device(&az->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
 		v4l2_device_unregister(v4l2_dev);
@@ -383,8 +385,6 @@ static int __init aztech_init(void)
 	}
 
 	v4l2_info(v4l2_dev, "Aztech radio card driver v1.00/19990224 rkroll@exploits.org\n");
-	/* mute card - prevents noisy bootups */
-	outb(0, az->io);
 	return 0;
 }
 
diff --git a/drivers/media/radio/radio-cadet.c b/drivers/media/radio/radio-cadet.c
index b701ea6..bc9ad08 100644
--- a/drivers/media/radio/radio-cadet.c
+++ b/drivers/media/radio/radio-cadet.c
@@ -328,11 +328,10 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo
 	unsigned char readbuf[RDS_BUFFER];
 	int i = 0;
 
+	mutex_lock(&dev->lock);
 	if (dev->rdsstat == 0) {
-		mutex_lock(&dev->lock);
 		dev->rdsstat = 1;
 		outb(0x80, dev->io);        /* Select RDS fifo */
-		mutex_unlock(&dev->lock);
 		init_timer(&dev->readtimer);
 		dev->readtimer.function = cadet_handler;
 		dev->readtimer.data = (unsigned long)dev;
@@ -340,12 +339,15 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo
 		add_timer(&dev->readtimer);
 	}
 	if (dev->rdsin == dev->rdsout) {
+		mutex_unlock(&dev->lock);
 		if (file->f_flags & O_NONBLOCK)
 			return -EWOULDBLOCK;
 		interruptible_sleep_on(&dev->read_queue);
+		mutex_lock(&dev->lock);
 	}
 	while (i < count && dev->rdsin != dev->rdsout)
 		readbuf[i++] = dev->rdsbuf[dev->rdsout++];
+	mutex_unlock(&dev->lock);
 
 	if (copy_to_user(data, readbuf, i))
 		return -EFAULT;
@@ -525,9 +527,11 @@ static int cadet_open(struct file *file)
 {
 	struct cadet *dev = video_drvdata(file);
 
+	mutex_lock(&dev->lock);
 	dev->users++;
 	if (1 == dev->users)
 		init_waitqueue_head(&dev->read_queue);
+	mutex_unlock(&dev->lock);
 	return 0;
 }
 
@@ -535,11 +539,13 @@ static int cadet_release(struct file *file)
 {
 	struct cadet *dev = video_drvdata(file);
 
+	mutex_lock(&dev->lock);
 	dev->users--;
 	if (0 == dev->users) {
 		del_timer_sync(&dev->readtimer);
 		dev->rdsstat = 0;
 	}
+	mutex_unlock(&dev->lock);
 	return 0;
 }
 
@@ -559,7 +565,7 @@ static const struct v4l2_file_operations cadet_fops = {
 	.open		= cadet_open,
 	.release       	= cadet_release,
 	.read		= cadet_read,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 	.poll		= cadet_poll,
 };
 
diff --git a/drivers/media/radio/radio-gemtek-pci.c b/drivers/media/radio/radio-gemtek-pci.c
index 7903967..28fa85b 100644
--- a/drivers/media/radio/radio-gemtek-pci.c
+++ b/drivers/media/radio/radio-gemtek-pci.c
@@ -361,7 +361,7 @@ MODULE_DEVICE_TABLE(pci, gemtek_pci_id);
 
 static const struct v4l2_file_operations gemtek_pci_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 };
 
 static const struct v4l2_ioctl_ops gemtek_pci_ioctl_ops = {
@@ -422,11 +422,11 @@ static int __devinit gemtek_pci_probe(struct pci_dev *pdev, const struct pci_dev
 	card->vdev.release = video_device_release_empty;
 	video_set_drvdata(&card->vdev, card);
 
+	gemtek_pci_mute(card);
+
 	if (video_register_device(&card->vdev, VFL_TYPE_RADIO, nr_radio) < 0)
 		goto err_video;
 
-	gemtek_pci_mute(card);
-
 	v4l2_info(v4l2_dev, "Gemtek PCI Radio (rev. %d) found at 0x%04x-0x%04x.\n",
 		pdev->revision, card->iobase, card->iobase + card->length - 1);
 
diff --git a/drivers/media/radio/radio-gemtek.c b/drivers/media/radio/radio-gemtek.c
index 73985f6..2599364 100644
--- a/drivers/media/radio/radio-gemtek.c
+++ b/drivers/media/radio/radio-gemtek.c
@@ -378,7 +378,7 @@ static int gemtek_probe(struct gemtek *gt)
 
 static const struct v4l2_file_operations gemtek_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 };
 
 static int vidioc_querycap(struct file *file, void *priv,
@@ -577,12 +577,6 @@ static int __init gemtek_init(void)
 	gt->vdev.release = video_device_release_empty;
 	video_set_drvdata(&gt->vdev, gt);
 
-	if (video_register_device(&gt->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
-		v4l2_device_unregister(v4l2_dev);
-		release_region(gt->io, 1);
-		return -EBUSY;
-	}
-
 	/* Set defaults */
 	gt->lastfreq = GEMTEK_LOWFREQ;
 	gt->bu2614data = 0;
@@ -590,6 +584,12 @@ static int __init gemtek_init(void)
 	if (initmute)
 		gemtek_mute(gt);
 
+	if (video_register_device(&gt->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+		v4l2_device_unregister(v4l2_dev);
+		release_region(gt->io, 1);
+		return -EBUSY;
+	}
+
 	return 0;
 }
 
diff --git a/drivers/media/radio/radio-maestro.c b/drivers/media/radio/radio-maestro.c
index 08f1051..6af61bf 100644
--- a/drivers/media/radio/radio-maestro.c
+++ b/drivers/media/radio/radio-maestro.c
@@ -299,7 +299,7 @@ static int vidioc_s_audio(struct file *file, void *priv,
 
 static const struct v4l2_file_operations maestro_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 };
 
 static const struct v4l2_ioctl_ops maestro_ioctl_ops = {
@@ -383,22 +383,20 @@ static int __devinit maestro_probe(struct pci_dev *pdev,
 	dev->vdev.release = video_device_release_empty;
 	video_set_drvdata(&dev->vdev, dev);
 
+	if (!radio_power_on(dev)) {
+		retval = -EIO;
+		goto errfr1;
+	}
+
 	retval = video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr);
 	if (retval) {
 		v4l2_err(v4l2_dev, "can't register video device!\n");
 		goto errfr1;
 	}
 
-	if (!radio_power_on(dev)) {
-		retval = -EIO;
-		goto errunr;
-	}
-
 	v4l2_info(v4l2_dev, "version " DRIVER_VERSION "\n");
 
 	return 0;
-errunr:
-	video_unregister_device(&dev->vdev);
 errfr1:
 	v4l2_device_unregister(v4l2_dev);
 errfr:
diff --git a/drivers/media/radio/radio-maxiradio.c b/drivers/media/radio/radio-maxiradio.c
index 255d40d..6459a22 100644
--- a/drivers/media/radio/radio-maxiradio.c
+++ b/drivers/media/radio/radio-maxiradio.c
@@ -346,7 +346,7 @@ static int vidioc_s_ctrl(struct file *file, void *priv,
 
 static const struct v4l2_file_operations maxiradio_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl          = video_ioctl2,
+	.unlocked_ioctl = video_ioctl2,
 };
 
 static const struct v4l2_ioctl_ops maxiradio_ioctl_ops = {
diff --git a/drivers/media/radio/radio-miropcm20.c b/drivers/media/radio/radio-miropcm20.c
index 4ff8854..3fb76e3 100644
--- a/drivers/media/radio/radio-miropcm20.c
+++ b/drivers/media/radio/radio-miropcm20.c
@@ -33,6 +33,7 @@ struct pcm20 {
 	unsigned long freq;
 	int muted;
 	struct snd_miro_aci *aci;
+	struct mutex lock;
 };
 
 static struct pcm20 pcm20_card = {
@@ -72,7 +73,7 @@ static int pcm20_setfreq(struct pcm20 *dev, unsigned long freq)
 
 static const struct v4l2_file_operations pcm20_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 };
 
 static int vidioc_querycap(struct file *file, void *priv,
@@ -229,7 +230,7 @@ static int __init pcm20_init(void)
 		return -ENODEV;
 	}
 	strlcpy(v4l2_dev->name, "miropcm20", sizeof(v4l2_dev->name));
-
+	mutex_init(&dev->lock);
 
 	res = v4l2_device_register(NULL, v4l2_dev);
 	if (res < 0) {
@@ -242,6 +243,7 @@ static int __init pcm20_init(void)
 	dev->vdev.fops = &pcm20_fops;
 	dev->vdev.ioctl_ops = &pcm20_ioctl_ops;
 	dev->vdev.release = video_device_release_empty;
+	dev->vdev.lock = &dev->lock;
 	video_set_drvdata(&dev->vdev, dev);
 
 	if (video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr) < 0)
diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c
index b540e80..e6b2d08 100644
--- a/drivers/media/radio/radio-mr800.c
+++ b/drivers/media/radio/radio-mr800.c
@@ -58,7 +58,6 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/input.h>
 #include <linux/videodev2.h>
 #include <media/v4l2-device.h>
diff --git a/drivers/media/radio/radio-rtrack2.c b/drivers/media/radio/radio-rtrack2.c
index a79296a..8d6ea59 100644
--- a/drivers/media/radio/radio-rtrack2.c
+++ b/drivers/media/radio/radio-rtrack2.c
@@ -266,7 +266,7 @@ static int vidioc_s_audio(struct file *file, void *priv,
 
 static const struct v4l2_file_operations rtrack2_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 };
 
 static const struct v4l2_ioctl_ops rtrack2_ioctl_ops = {
@@ -315,6 +315,10 @@ static int __init rtrack2_init(void)
 	dev->vdev.release = video_device_release_empty;
 	video_set_drvdata(&dev->vdev, dev);
 
+	/* mute card - prevents noisy bootups */
+	outb(1, dev->io);
+	dev->muted = 1;
+
 	mutex_init(&dev->lock);
 	if (video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
 		v4l2_device_unregister(v4l2_dev);
@@ -324,10 +328,6 @@ static int __init rtrack2_init(void)
 
 	v4l2_info(v4l2_dev, "AIMSlab Radiotrack II card driver.\n");
 
-	/* mute card - prevents noisy bootups */
-	outb(1, dev->io);
-	dev->muted = 1;
-
 	return 0;
 }
 
diff --git a/drivers/media/radio/radio-sf16fmi.c b/drivers/media/radio/radio-sf16fmi.c
index 985359d..b5a5f89 100644
--- a/drivers/media/radio/radio-sf16fmi.c
+++ b/drivers/media/radio/radio-sf16fmi.c
@@ -260,7 +260,7 @@ static int vidioc_s_audio(struct file *file, void *priv,
 
 static const struct v4l2_file_operations fmi_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 };
 
 static const struct v4l2_ioctl_ops fmi_ioctl_ops = {
@@ -382,6 +382,9 @@ static int __init fmi_init(void)
 
 	mutex_init(&fmi->lock);
 
+	/* mute card - prevents noisy bootups */
+	fmi_mute(fmi);
+
 	if (video_register_device(&fmi->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
 		v4l2_device_unregister(v4l2_dev);
 		release_region(fmi->io, 2);
@@ -391,8 +394,6 @@ static int __init fmi_init(void)
 	}
 
 	v4l2_info(v4l2_dev, "card driver at 0x%x\n", fmi->io);
-	/* mute card - prevents noisy bootups */
-	fmi_mute(fmi);
 	return 0;
 }
 
diff --git a/drivers/media/radio/radio-sf16fmr2.c b/drivers/media/radio/radio-sf16fmr2.c
index 52c7bbb..dc3f04c 100644
--- a/drivers/media/radio/radio-sf16fmr2.c
+++ b/drivers/media/radio/radio-sf16fmr2.c
@@ -376,7 +376,7 @@ static int vidioc_s_audio(struct file *file, void *priv,
 
 static const struct v4l2_file_operations fmr2_fops = {
 	.owner          = THIS_MODULE,
-	.ioctl          = video_ioctl2,
+	.unlocked_ioctl = video_ioctl2,
 };
 
 static const struct v4l2_ioctl_ops fmr2_ioctl_ops = {
@@ -424,6 +424,10 @@ static int __init fmr2_init(void)
 	fmr2->vdev.release = video_device_release_empty;
 	video_set_drvdata(&fmr2->vdev, fmr2);
 
+	/* mute card - prevents noisy bootups */
+	fmr2_mute(fmr2->io);
+	fmr2_product_info(fmr2);
+
 	if (video_register_device(&fmr2->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
 		v4l2_device_unregister(v4l2_dev);
 		release_region(fmr2->io, 2);
@@ -431,11 +435,6 @@ static int __init fmr2_init(void)
 	}
 
 	v4l2_info(v4l2_dev, "SF16FMR2 radio card driver at 0x%x.\n", fmr2->io);
-	/* mute card - prevents noisy bootups */
-	mutex_lock(&fmr2->lock);
-	fmr2_mute(fmr2->io);
-	fmr2_product_info(fmr2);
-	mutex_unlock(&fmr2->lock);
 	debug_print((KERN_DEBUG "card_type %d\n", fmr2->card_type));
 	return 0;
 }
diff --git a/drivers/media/radio/radio-si4713.c b/drivers/media/radio/radio-si4713.c
index 6a43578..726d367 100644
--- a/drivers/media/radio/radio-si4713.c
+++ b/drivers/media/radio/radio-si4713.c
@@ -53,7 +53,8 @@ struct radio_si4713_device {
 /* radio_si4713_fops - file operations interface */
 static const struct v4l2_file_operations radio_si4713_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl		= video_ioctl2,
+	/* Note: locking is done at the subdev level in the i2c driver. */
+	.unlocked_ioctl	= video_ioctl2,
 };
 
 /* Video4Linux Interface */
@@ -291,7 +292,7 @@ static int radio_si4713_pdriver_probe(struct platform_device *pdev)
 		goto unregister_v4l2_dev;
 	}
 
-	sd = v4l2_i2c_new_subdev_board(&rsdev->v4l2_dev, adapter, NULL,
+	sd = v4l2_i2c_new_subdev_board(&rsdev->v4l2_dev, adapter,
 					pdata->subdev_board_info, NULL);
 	if (!sd) {
 		dev_err(&pdev->dev, "Cannot get v4l2 subdevice\n");
diff --git a/drivers/media/radio/radio-tea5764.c b/drivers/media/radio/radio-tea5764.c
index 789d2ec..0e71d81 100644
--- a/drivers/media/radio/radio-tea5764.c
+++ b/drivers/media/radio/radio-tea5764.c
@@ -142,7 +142,6 @@ struct tea5764_device {
 	struct video_device		*videodev;
 	struct tea5764_regs		regs;
 	struct mutex			mutex;
-	int				users;
 };
 
 /* I2C code related */
@@ -458,41 +457,10 @@ static int vidioc_s_audio(struct file *file, void *priv,
 	return 0;
 }
 
-static int tea5764_open(struct file *file)
-{
-	/* Currently we support only one device */
-	struct tea5764_device *radio = video_drvdata(file);
-
-	mutex_lock(&radio->mutex);
-	/* Only exclusive access */
-	if (radio->users) {
-		mutex_unlock(&radio->mutex);
-		return -EBUSY;
-	}
-	radio->users++;
-	mutex_unlock(&radio->mutex);
-	file->private_data = radio;
-	return 0;
-}
-
-static int tea5764_close(struct file *file)
-{
-	struct tea5764_device *radio = video_drvdata(file);
-
-	if (!radio)
-		return -ENODEV;
-	mutex_lock(&radio->mutex);
-	radio->users--;
-	mutex_unlock(&radio->mutex);
-	return 0;
-}
-
 /* File system interface */
 static const struct v4l2_file_operations tea5764_fops = {
 	.owner		= THIS_MODULE,
-	.open           = tea5764_open,
-	.release        = tea5764_close,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 };
 
 static const struct v4l2_ioctl_ops tea5764_ioctl_ops = {
@@ -527,7 +495,7 @@ static int __devinit tea5764_i2c_probe(struct i2c_client *client,
 	int ret;
 
 	PDEBUG("probe");
-	radio = kmalloc(sizeof(struct tea5764_device), GFP_KERNEL);
+	radio = kzalloc(sizeof(struct tea5764_device), GFP_KERNEL);
 	if (!radio)
 		return -ENOMEM;
 
@@ -555,12 +523,7 @@ static int __devinit tea5764_i2c_probe(struct i2c_client *client,
 
 	i2c_set_clientdata(client, radio);
 	video_set_drvdata(radio->videodev, radio);
-
-	ret = video_register_device(radio->videodev, VFL_TYPE_RADIO, radio_nr);
-	if (ret < 0) {
-		PWARN("Could not register video device!");
-		goto errrel;
-	}
+	radio->videodev->lock = &radio->mutex;
 
 	/* initialize and power off the chip */
 	tea5764_i2c_read(radio);
@@ -568,6 +531,12 @@ static int __devinit tea5764_i2c_probe(struct i2c_client *client,
 	tea5764_mute(radio, 1);
 	tea5764_power_down(radio);
 
+	ret = video_register_device(radio->videodev, VFL_TYPE_RADIO, radio_nr);
+	if (ret < 0) {
+		PWARN("Could not register video device!");
+		goto errrel;
+	}
+
 	PINFO("registered.");
 	return 0;
 errrel:
diff --git a/drivers/media/radio/radio-terratec.c b/drivers/media/radio/radio-terratec.c
index fc1c860..a326639 100644
--- a/drivers/media/radio/radio-terratec.c
+++ b/drivers/media/radio/radio-terratec.c
@@ -338,7 +338,7 @@ static int vidioc_s_audio(struct file *file, void *priv,
 
 static const struct v4l2_file_operations terratec_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 };
 
 static const struct v4l2_ioctl_ops terratec_ioctl_ops = {
@@ -389,6 +389,9 @@ static int __init terratec_init(void)
 
 	mutex_init(&tt->lock);
 
+	/* mute card - prevents noisy bootups */
+	tt_write_vol(tt, 0);
+
 	if (video_register_device(&tt->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
 		v4l2_device_unregister(&tt->v4l2_dev);
 		release_region(tt->io, 2);
@@ -396,9 +399,6 @@ static int __init terratec_init(void)
 	}
 
 	v4l2_info(v4l2_dev, "TERRATEC ActivRadio Standalone card driver.\n");
-
-	/* mute card - prevents noisy bootups */
-	tt_write_vol(tt, 0);
 	return 0;
 }
 
diff --git a/drivers/media/radio/radio-timb.c b/drivers/media/radio/radio-timb.c
index b8bb3ef..a185610 100644
--- a/drivers/media/radio/radio-timb.c
+++ b/drivers/media/radio/radio-timb.c
@@ -34,6 +34,7 @@ struct timbradio {
 	struct v4l2_subdev	*sd_dsp;
 	struct video_device	video_dev;
 	struct v4l2_device	v4l2_dev;
+	struct mutex		lock;
 };
 
 
@@ -142,7 +143,7 @@ static const struct v4l2_ioctl_ops timbradio_ioctl_ops = {
 
 static const struct v4l2_file_operations timbradio_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 };
 
 static int __devinit timbradio_probe(struct platform_device *pdev)
@@ -164,6 +165,7 @@ static int __devinit timbradio_probe(struct platform_device *pdev)
 	}
 
 	tr->pdata = *pdata;
+	mutex_init(&tr->lock);
 
 	strlcpy(tr->video_dev.name, "Timberdale Radio",
 		sizeof(tr->video_dev.name));
@@ -171,6 +173,7 @@ static int __devinit timbradio_probe(struct platform_device *pdev)
 	tr->video_dev.ioctl_ops = &timbradio_ioctl_ops;
 	tr->video_dev.release = video_device_release_empty;
 	tr->video_dev.minor = -1;
+	tr->video_dev.lock = &tr->lock;
 
 	strlcpy(tr->v4l2_dev.name, DRIVER_NAME, sizeof(tr->v4l2_dev.name));
 	err = v4l2_device_register(NULL, &tr->v4l2_dev);
diff --git a/drivers/media/radio/radio-trust.c b/drivers/media/radio/radio-trust.c
index 9d6dcf8..22fa9cc 100644
--- a/drivers/media/radio/radio-trust.c
+++ b/drivers/media/radio/radio-trust.c
@@ -344,7 +344,7 @@ static int vidioc_s_audio(struct file *file, void *priv,
 
 static const struct v4l2_file_operations trust_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 };
 
 static const struct v4l2_ioctl_ops trust_ioctl_ops = {
@@ -396,14 +396,6 @@ static int __init trust_init(void)
 	tr->vdev.release = video_device_release_empty;
 	video_set_drvdata(&tr->vdev, tr);
 
-	if (video_register_device(&tr->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
-		v4l2_device_unregister(v4l2_dev);
-		release_region(tr->io, 2);
-		return -EINVAL;
-	}
-
-	v4l2_info(v4l2_dev, "Trust FM Radio card driver v1.0.\n");
-
 	write_i2c(tr, 2, TDA7318_ADDR, 0x80);	/* speaker att. LF = 0 dB */
 	write_i2c(tr, 2, TDA7318_ADDR, 0xa0);	/* speaker att. RF = 0 dB */
 	write_i2c(tr, 2, TDA7318_ADDR, 0xc0);	/* speaker att. LR = 0 dB */
@@ -418,6 +410,14 @@ static int __init trust_init(void)
 	/* mute card - prevents noisy bootups */
 	tr_setmute(tr, 1);
 
+	if (video_register_device(&tr->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+		v4l2_device_unregister(v4l2_dev);
+		release_region(tr->io, 2);
+		return -EINVAL;
+	}
+
+	v4l2_info(v4l2_dev, "Trust FM Radio card driver v1.0.\n");
+
 	return 0;
 }
 
diff --git a/drivers/media/radio/radio-typhoon.c b/drivers/media/radio/radio-typhoon.c
index b1f6305..8dbbf08 100644
--- a/drivers/media/radio/radio-typhoon.c
+++ b/drivers/media/radio/radio-typhoon.c
@@ -317,7 +317,7 @@ static int vidioc_log_status(struct file *file, void *priv)
 
 static const struct v4l2_file_operations typhoon_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 };
 
 static const struct v4l2_ioctl_ops typhoon_ioctl_ops = {
@@ -344,18 +344,18 @@ static int __init typhoon_init(void)
 
 	strlcpy(v4l2_dev->name, "typhoon", sizeof(v4l2_dev->name));
 	dev->io = io;
-	dev->curfreq = dev->mutefreq = mutefreq;
 
 	if (dev->io == -1) {
 		v4l2_err(v4l2_dev, "You must set an I/O address with io=0x316 or io=0x336\n");
 		return -EINVAL;
 	}
 
-	if (dev->mutefreq < 87000 || dev->mutefreq > 108500) {
+	if (mutefreq < 87000 || mutefreq > 108500) {
 		v4l2_err(v4l2_dev, "You must set a frequency (in kHz) used when muting the card,\n");
 		v4l2_err(v4l2_dev, "e.g. with \"mutefreq=87500\" (87000 <= mutefreq <= 108500)\n");
 		return -EINVAL;
 	}
+	dev->curfreq = dev->mutefreq = mutefreq << 4;
 
 	mutex_init(&dev->lock);
 	if (!request_region(dev->io, 8, "typhoon")) {
@@ -378,17 +378,17 @@ static int __init typhoon_init(void)
 	dev->vdev.ioctl_ops = &typhoon_ioctl_ops;
 	dev->vdev.release = video_device_release_empty;
 	video_set_drvdata(&dev->vdev, dev);
+
+	/* mute card - prevents noisy bootups */
+	typhoon_mute(dev);
+
 	if (video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
 		v4l2_device_unregister(&dev->v4l2_dev);
 		release_region(dev->io, 8);
 		return -EINVAL;
 	}
 	v4l2_info(v4l2_dev, "port 0x%x.\n", dev->io);
-	v4l2_info(v4l2_dev, "mute frequency is %lu kHz.\n", dev->mutefreq);
-	dev->mutefreq <<= 4;
-
-	/* mute card - prevents noisy bootups */
-	typhoon_mute(dev);
+	v4l2_info(v4l2_dev, "mute frequency is %lu kHz.\n", mutefreq);
 
 	return 0;
 }
diff --git a/drivers/media/radio/radio-zoltrix.c b/drivers/media/radio/radio-zoltrix.c
index f31eab9..af99c5b 100644
--- a/drivers/media/radio/radio-zoltrix.c
+++ b/drivers/media/radio/radio-zoltrix.c
@@ -377,7 +377,7 @@ static int vidioc_s_audio(struct file *file, void *priv,
 static const struct v4l2_file_operations zoltrix_fops =
 {
 	.owner		= THIS_MODULE,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 };
 
 static const struct v4l2_ioctl_ops zoltrix_ioctl_ops = {
@@ -424,20 +424,6 @@ static int __init zoltrix_init(void)
 		return res;
 	}
 
-	strlcpy(zol->vdev.name, v4l2_dev->name, sizeof(zol->vdev.name));
-	zol->vdev.v4l2_dev = v4l2_dev;
-	zol->vdev.fops = &zoltrix_fops;
-	zol->vdev.ioctl_ops = &zoltrix_ioctl_ops;
-	zol->vdev.release = video_device_release_empty;
-	video_set_drvdata(&zol->vdev, zol);
-
-	if (video_register_device(&zol->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
-		v4l2_device_unregister(v4l2_dev);
-		release_region(zol->io, 2);
-		return -EINVAL;
-	}
-	v4l2_info(v4l2_dev, "Zoltrix Radio Plus card driver.\n");
-
 	mutex_init(&zol->lock);
 
 	/* mute card - prevents noisy bootups */
@@ -452,6 +438,20 @@ static int __init zoltrix_init(void)
 	zol->curvol = 0;
 	zol->stereo = 1;
 
+	strlcpy(zol->vdev.name, v4l2_dev->name, sizeof(zol->vdev.name));
+	zol->vdev.v4l2_dev = v4l2_dev;
+	zol->vdev.fops = &zoltrix_fops;
+	zol->vdev.ioctl_ops = &zoltrix_ioctl_ops;
+	zol->vdev.release = video_device_release_empty;
+	video_set_drvdata(&zol->vdev, zol);
+
+	if (video_register_device(&zol->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+		v4l2_device_unregister(v4l2_dev);
+		release_region(zol->io, 2);
+		return -EINVAL;
+	}
+	v4l2_info(v4l2_dev, "Zoltrix Radio Plus card driver.\n");
+
 	return 0;
 }
 
diff --git a/drivers/media/radio/si470x/radio-si470x.h b/drivers/media/radio/si470x/radio-si470x.h
index ea12782..b9914d7 100644
--- a/drivers/media/radio/si470x/radio-si470x.h
+++ b/drivers/media/radio/si470x/radio-si470x.h
@@ -31,7 +31,6 @@
 #include <linux/init.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/input.h>
 #include <linux/version.h>
 #include <linux/videodev2.h>
diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig
index ac16e81..6830d28 100644
--- a/drivers/media/video/Kconfig
+++ b/drivers/media/video/Kconfig
@@ -112,7 +112,7 @@ config VIDEO_IR_I2C
 #
 
 menu "Encoders/decoders and other helper chips"
-	depends on !VIDEO_HELPER_CHIPS_AUTO
+	visible if !VIDEO_HELPER_CHIPS_AUTO
 
 comment "Audio decoders"
 
diff --git a/drivers/media/video/arv.c b/drivers/media/video/arv.c
index 31e7a12..f989f28 100644
--- a/drivers/media/video/arv.c
+++ b/drivers/media/video/arv.c
@@ -712,7 +712,7 @@ static int ar_initialize(struct ar *ar)
 static const struct v4l2_file_operations ar_fops = {
 	.owner		= THIS_MODULE,
 	.read		= ar_read,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 };
 
 static const struct v4l2_ioctl_ops ar_ioctl_ops = {
diff --git a/drivers/media/video/au0828/au0828-cards.c b/drivers/media/video/au0828/au0828-cards.c
index 0453816..01be89f 100644
--- a/drivers/media/video/au0828/au0828-cards.c
+++ b/drivers/media/video/au0828/au0828-cards.c
@@ -212,7 +212,7 @@ void au0828_card_setup(struct au0828_dev *dev)
 		   be abstracted out if we ever need to support a different
 		   demod) */
 		sd = v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
-				NULL, "au8522", 0x8e >> 1, NULL);
+				"au8522", 0x8e >> 1, NULL);
 		if (sd == NULL)
 			printk(KERN_ERR "analog subdev registration failed\n");
 	}
@@ -221,7 +221,7 @@ void au0828_card_setup(struct au0828_dev *dev)
 	if (dev->board.tuner_type != TUNER_ABSENT) {
 		/* Load the tuner module, which does the attach */
 		sd = v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
-				NULL, "tuner", dev->board.tuner_addr, NULL);
+				"tuner", dev->board.tuner_addr, NULL);
 		if (sd == NULL)
 			printk(KERN_ERR "tuner subdev registration fail\n");
 
diff --git a/drivers/media/video/bt8xx/bttv-cards.c b/drivers/media/video/bt8xx/bttv-cards.c
index 87d8b00..49efcf6 100644
--- a/drivers/media/video/bt8xx/bttv-cards.c
+++ b/drivers/media/video/bt8xx/bttv-cards.c
@@ -3529,7 +3529,7 @@ void __devinit bttv_init_card2(struct bttv *btv)
 		struct v4l2_subdev *sd;
 
 		sd = v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-			&btv->c.i2c_adap, NULL, "saa6588", 0, addrs);
+			&btv->c.i2c_adap, "saa6588", 0, addrs);
 		btv->has_saa6588 = (sd != NULL);
 	}
 
@@ -3554,7 +3554,7 @@ void __devinit bttv_init_card2(struct bttv *btv)
 		};
 
 		btv->sd_msp34xx = v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-			&btv->c.i2c_adap, NULL, "msp3400", 0, addrs);
+			&btv->c.i2c_adap, "msp3400", 0, addrs);
 		if (btv->sd_msp34xx)
 			return;
 		goto no_audio;
@@ -3568,7 +3568,7 @@ void __devinit bttv_init_card2(struct bttv *btv)
 		};
 
 		if (v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-				&btv->c.i2c_adap, NULL, "tda7432", 0, addrs))
+				&btv->c.i2c_adap, "tda7432", 0, addrs))
 			return;
 		goto no_audio;
 	}
@@ -3576,7 +3576,7 @@ void __devinit bttv_init_card2(struct bttv *btv)
 	case 3: {
 		/* The user specified that we should probe for tvaudio */
 		btv->sd_tvaudio = v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-			&btv->c.i2c_adap, NULL, "tvaudio", 0, tvaudio_addrs());
+			&btv->c.i2c_adap, "tvaudio", 0, tvaudio_addrs());
 		if (btv->sd_tvaudio)
 			return;
 		goto no_audio;
@@ -3596,11 +3596,11 @@ void __devinit bttv_init_card2(struct bttv *btv)
 	   found is really something else (e.g. a tea6300). */
 	if (!bttv_tvcards[btv->c.type].no_msp34xx) {
 		btv->sd_msp34xx = v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-			&btv->c.i2c_adap, NULL, "msp3400",
+			&btv->c.i2c_adap, "msp3400",
 			0, I2C_ADDRS(I2C_ADDR_MSP3400 >> 1));
 	} else if (bttv_tvcards[btv->c.type].msp34xx_alt) {
 		btv->sd_msp34xx = v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-			&btv->c.i2c_adap, NULL, "msp3400",
+			&btv->c.i2c_adap, "msp3400",
 			0, I2C_ADDRS(I2C_ADDR_MSP3400_ALT >> 1));
 	}
 
@@ -3616,13 +3616,13 @@ void __devinit bttv_init_card2(struct bttv *btv)
 		};
 
 		if (v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-				&btv->c.i2c_adap, NULL, "tda7432", 0, addrs))
+				&btv->c.i2c_adap, "tda7432", 0, addrs))
 			return;
 	}
 
 	/* Now see if we can find one of the tvaudio devices. */
 	btv->sd_tvaudio = v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-		&btv->c.i2c_adap, NULL, "tvaudio", 0, tvaudio_addrs());
+		&btv->c.i2c_adap, "tvaudio", 0, tvaudio_addrs());
 	if (btv->sd_tvaudio)
 		return;
 
@@ -3646,13 +3646,13 @@ void __devinit bttv_init_tuner(struct bttv *btv)
 		/* Load tuner module before issuing tuner config call! */
 		if (bttv_tvcards[btv->c.type].has_radio)
 			v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-				&btv->c.i2c_adap, NULL, "tuner",
+				&btv->c.i2c_adap, "tuner",
 				0, v4l2_i2c_tuner_addrs(ADDRS_RADIO));
 		v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-				&btv->c.i2c_adap, NULL, "tuner",
+				&btv->c.i2c_adap, "tuner",
 				0, v4l2_i2c_tuner_addrs(ADDRS_DEMOD));
 		v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-				&btv->c.i2c_adap, NULL, "tuner",
+				&btv->c.i2c_adap, "tuner",
 				0, v4l2_i2c_tuner_addrs(ADDRS_TV_WITH_DEMOD));
 
 		tun_setup.mode_mask = T_ANALOG_TV | T_DIGITAL_TV;
diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c
index 3da6e80..0902ec0 100644
--- a/drivers/media/video/bt8xx/bttv-driver.c
+++ b/drivers/media/video/bt8xx/bttv-driver.c
@@ -42,7 +42,6 @@
 #include <linux/fs.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
-#include <linux/smp_lock.h>
 #include <linux/interrupt.h>
 #include <linux/kdev_t.h>
 #include "bttvp.h"
@@ -855,7 +854,6 @@ int check_alloc_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bit)
 		xbits |= RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM;
 
 	/* is it free? */
-	mutex_lock(&btv->lock);
 	if (btv->resources & xbits) {
 		/* no, someone else uses it */
 		goto fail;
@@ -885,11 +883,9 @@ int check_alloc_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bit)
 	/* it's free, grab it */
 	fh->resources  |= bit;
 	btv->resources |= bit;
-	mutex_unlock(&btv->lock);
 	return 1;
 
  fail:
-	mutex_unlock(&btv->lock);
 	return 0;
 }
 
@@ -941,7 +937,6 @@ void free_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bits)
 		/* trying to free ressources not allocated by us ... */
 		printk("bttv: BUG! (btres)\n");
 	}
-	mutex_lock(&btv->lock);
 	fh->resources  &= ~bits;
 	btv->resources &= ~bits;
 
@@ -952,8 +947,6 @@ void free_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bits)
 
 	if (0 == (bits & VBI_RESOURCES))
 		disclaim_vbi_lines(btv);
-
-	mutex_unlock(&btv->lock);
 }
 
 /* ----------------------------------------------------------------------- */
@@ -1714,28 +1707,20 @@ static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv,
 
 		/* Make sure tvnorm and vbi_end remain consistent
 		   until we're done. */
-		mutex_lock(&btv->lock);
 
 		norm = btv->tvnorm;
 
 		/* In this mode capturing always starts at defrect.top
 		   (default VDELAY), ignoring cropping parameters. */
 		if (btv->vbi_end > bttv_tvnorms[norm].cropcap.defrect.top) {
-			mutex_unlock(&btv->lock);
 			return -EINVAL;
 		}
 
-		mutex_unlock(&btv->lock);
-
 		c.rect = bttv_tvnorms[norm].cropcap.defrect;
 	} else {
-		mutex_lock(&btv->lock);
-
 		norm = btv->tvnorm;
 		c = btv->crop[!!fh->do_crop];
 
-		mutex_unlock(&btv->lock);
-
 		if (width < c.min_scaled_width ||
 		    width > c.max_scaled_width ||
 		    height < c.min_scaled_height)
@@ -1859,7 +1844,6 @@ static int bttv_s_std(struct file *file, void *priv, v4l2_std_id *id)
 	unsigned int i;
 	int err;
 
-	mutex_lock(&btv->lock);
 	err = v4l2_prio_check(&btv->prio, fh->prio);
 	if (err)
 		goto err;
@@ -1875,7 +1859,6 @@ static int bttv_s_std(struct file *file, void *priv, v4l2_std_id *id)
 	set_tvnorm(btv, i);
 
 err:
-	mutex_unlock(&btv->lock);
 
 	return err;
 }
@@ -1899,7 +1882,6 @@ static int bttv_enum_input(struct file *file, void *priv,
 	struct bttv *btv = fh->btv;
 	int rc = 0;
 
-	mutex_lock(&btv->lock);
 	if (i->index >= bttv_tvcards[btv->c.type].video_inputs) {
 		rc = -EINVAL;
 		goto err;
@@ -1929,7 +1911,6 @@ static int bttv_enum_input(struct file *file, void *priv,
 	i->std = BTTV_NORMS;
 
 err:
-	mutex_unlock(&btv->lock);
 
 	return rc;
 }
@@ -1939,9 +1920,7 @@ static int bttv_g_input(struct file *file, void *priv, unsigned int *i)
 	struct bttv_fh *fh = priv;
 	struct bttv *btv = fh->btv;
 
-	mutex_lock(&btv->lock);
 	*i = btv->input;
-	mutex_unlock(&btv->lock);
 
 	return 0;
 }
@@ -1953,7 +1932,6 @@ static int bttv_s_input(struct file *file, void *priv, unsigned int i)
 
 	int err;
 
-	mutex_lock(&btv->lock);
 	err = v4l2_prio_check(&btv->prio, fh->prio);
 	if (unlikely(err))
 		goto err;
@@ -1966,7 +1944,6 @@ static int bttv_s_input(struct file *file, void *priv, unsigned int i)
 	set_input(btv, i, btv->tvnorm);
 
 err:
-	mutex_unlock(&btv->lock);
 	return 0;
 }
 
@@ -1980,7 +1957,6 @@ static int bttv_s_tuner(struct file *file, void *priv,
 	if (unlikely(0 != t->index))
 		return -EINVAL;
 
-	mutex_lock(&btv->lock);
 	if (unlikely(btv->tuner_type == TUNER_ABSENT)) {
 		err = -EINVAL;
 		goto err;
@@ -1996,7 +1972,6 @@ static int bttv_s_tuner(struct file *file, void *priv,
 		btv->audio_mode_gpio(btv, t, 1);
 
 err:
-	mutex_unlock(&btv->lock);
 
 	return 0;
 }
@@ -2007,10 +1982,8 @@ static int bttv_g_frequency(struct file *file, void *priv,
 	struct bttv_fh *fh  = priv;
 	struct bttv *btv = fh->btv;
 
-	mutex_lock(&btv->lock);
 	f->type = btv->radio_user ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
 	f->frequency = btv->freq;
-	mutex_unlock(&btv->lock);
 
 	return 0;
 }
@@ -2025,7 +1998,6 @@ static int bttv_s_frequency(struct file *file, void *priv,
 	if (unlikely(f->tuner != 0))
 		return -EINVAL;
 
-	mutex_lock(&btv->lock);
 	err = v4l2_prio_check(&btv->prio, fh->prio);
 	if (unlikely(err))
 		goto err;
@@ -2040,7 +2012,6 @@ static int bttv_s_frequency(struct file *file, void *priv,
 	if (btv->has_matchbox && btv->radio_user)
 		tea5757_set_freq(btv, btv->freq);
 err:
-	mutex_unlock(&btv->lock);
 
 	return 0;
 }
@@ -2173,7 +2144,6 @@ limit_scaled_size_lock       (struct bttv_fh *               fh,
 
 	/* Make sure tvnorm, vbi_end and the current cropping parameters
 	   remain consistent until we're done. */
-	mutex_lock(&btv->lock);
 
 	b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
 
@@ -2251,7 +2221,6 @@ limit_scaled_size_lock       (struct bttv_fh *               fh,
 	rc = 0; /* success */
 
  fail:
-	mutex_unlock(&btv->lock);
 
 	return rc;
 }
@@ -2283,9 +2252,7 @@ verify_window_lock		(struct bttv_fh *               fh,
 	if (V4L2_FIELD_ANY == field) {
 		__s32 height2;
 
-		mutex_lock(&fh->btv->lock);
 		height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1;
-		mutex_unlock(&fh->btv->lock);
 		field = (win->w.height > height2)
 			? V4L2_FIELD_INTERLACED
 			: V4L2_FIELD_TOP;
@@ -2361,7 +2328,6 @@ static int setup_window_lock(struct bttv_fh *fh, struct bttv *btv,
 		}
 	}
 
-	mutex_lock(&fh->cap.vb_lock);
 	/* clip against screen */
 	if (NULL != btv->fbuf.base)
 		n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height,
@@ -2392,13 +2358,6 @@ static int setup_window_lock(struct bttv_fh *fh, struct bttv *btv,
 	fh->ov.field    = win->field;
 	fh->ov.setup_ok = 1;
 
-	/*
-	 * FIXME: btv is protected by btv->lock mutex, while btv->init
-	 *	  is protected by fh->cap.vb_lock. This seems to open the
-	 *	  possibility for some race situations. Maybe the better would
-	 *	  be to unify those locks or to use another way to store the
-	 *	  init values that will be consumed by videobuf callbacks
-	 */
 	btv->init.ov.w.width   = win->w.width;
 	btv->init.ov.w.height  = win->w.height;
 	btv->init.ov.field     = win->field;
@@ -2413,7 +2372,6 @@ static int setup_window_lock(struct bttv_fh *fh, struct bttv *btv,
 		bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
 		retval = bttv_switch_overlay(btv,fh,new);
 	}
-	mutex_unlock(&fh->cap.vb_lock);
 	return retval;
 }
 
@@ -2527,9 +2485,7 @@ static int bttv_try_fmt_vid_cap(struct file *file, void *priv,
 	if (V4L2_FIELD_ANY == field) {
 		__s32 height2;
 
-		mutex_lock(&btv->lock);
 		height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
-		mutex_unlock(&btv->lock);
 		field = (f->fmt.pix.height > height2)
 			? V4L2_FIELD_INTERLACED
 			: V4L2_FIELD_BOTTOM;
@@ -2615,7 +2571,6 @@ static int bttv_s_fmt_vid_cap(struct file *file, void *priv,
 	fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 
 	/* update our state informations */
-	mutex_lock(&fh->cap.vb_lock);
 	fh->fmt              = fmt;
 	fh->cap.field        = f->fmt.pix.field;
 	fh->cap.last         = V4L2_FIELD_NONE;
@@ -2624,7 +2579,6 @@ static int bttv_s_fmt_vid_cap(struct file *file, void *priv,
 	btv->init.fmt        = fmt;
 	btv->init.width      = f->fmt.pix.width;
 	btv->init.height     = f->fmt.pix.height;
-	mutex_unlock(&fh->cap.vb_lock);
 
 	return 0;
 }
@@ -2650,11 +2604,9 @@ static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
 	unsigned int i;
 	struct bttv_fh *fh = priv;
 
-	mutex_lock(&fh->cap.vb_lock);
 	retval = __videobuf_mmap_setup(&fh->cap, gbuffers, gbufsize,
 				     V4L2_MEMORY_MMAP);
 	if (retval < 0) {
-		mutex_unlock(&fh->cap.vb_lock);
 		return retval;
 	}
 
@@ -2666,7 +2618,6 @@ static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
 	for (i = 0; i < gbuffers; i++)
 		mbuf->offsets[i] = i * gbufsize;
 
-	mutex_unlock(&fh->cap.vb_lock);
 	return 0;
 }
 #endif
@@ -2776,10 +2727,8 @@ static int bttv_overlay(struct file *file, void *f, unsigned int on)
 	int retval = 0;
 
 	if (on) {
-		mutex_lock(&fh->cap.vb_lock);
 		/* verify args */
 		if (unlikely(!btv->fbuf.base)) {
-			mutex_unlock(&fh->cap.vb_lock);
 			return -EINVAL;
 		}
 		if (unlikely(!fh->ov.setup_ok)) {
@@ -2788,13 +2737,11 @@ static int bttv_overlay(struct file *file, void *f, unsigned int on)
 		}
 		if (retval)
 			return retval;
-		mutex_unlock(&fh->cap.vb_lock);
 	}
 
 	if (!check_alloc_btres_lock(btv, fh, RESOURCE_OVERLAY))
 		return -EBUSY;
 
-	mutex_lock(&fh->cap.vb_lock);
 	if (on) {
 		fh->ov.tvnorm = btv->tvnorm;
 		new = videobuf_sg_alloc(sizeof(*new));
@@ -2806,7 +2753,6 @@ static int bttv_overlay(struct file *file, void *f, unsigned int on)
 
 	/* switch over */
 	retval = bttv_switch_overlay(btv, fh, new);
-	mutex_unlock(&fh->cap.vb_lock);
 	return retval;
 }
 
@@ -2845,7 +2791,6 @@ static int bttv_s_fbuf(struct file *file, void *f,
 	}
 
 	/* ok, accept it */
-	mutex_lock(&fh->cap.vb_lock);
 	btv->fbuf.base       = fb->base;
 	btv->fbuf.fmt.width  = fb->fmt.width;
 	btv->fbuf.fmt.height = fb->fmt.height;
@@ -2877,7 +2822,6 @@ static int bttv_s_fbuf(struct file *file, void *f,
 			retval = bttv_switch_overlay(btv, fh, new);
 		}
 	}
-	mutex_unlock(&fh->cap.vb_lock);
 	return retval;
 }
 
@@ -2956,7 +2900,6 @@ static int bttv_queryctrl(struct file *file, void *priv,
 	     c->id >= V4L2_CID_PRIVATE_LASTP1))
 		return -EINVAL;
 
-	mutex_lock(&btv->lock);
 	if (!btv->volume_gpio && (c->id == V4L2_CID_AUDIO_VOLUME))
 		*c = no_ctl;
 	else {
@@ -2964,7 +2907,6 @@ static int bttv_queryctrl(struct file *file, void *priv,
 
 		*c = (NULL != ctrl) ? *ctrl : no_ctl;
 	}
-	mutex_unlock(&btv->lock);
 
 	return 0;
 }
@@ -2975,10 +2917,8 @@ static int bttv_g_parm(struct file *file, void *f,
 	struct bttv_fh *fh = f;
 	struct bttv *btv = fh->btv;
 
-	mutex_lock(&btv->lock);
 	v4l2_video_std_frame_period(bttv_tvnorms[btv->tvnorm].v4l2_id,
 				    &parm->parm.capture.timeperframe);
-	mutex_unlock(&btv->lock);
 
 	return 0;
 }
@@ -2994,7 +2934,6 @@ static int bttv_g_tuner(struct file *file, void *priv,
 	if (0 != t->index)
 		return -EINVAL;
 
-	mutex_lock(&btv->lock);
 	t->rxsubchans = V4L2_TUNER_SUB_MONO;
 	bttv_call_all(btv, tuner, g_tuner, t);
 	strcpy(t->name, "Television");
@@ -3006,7 +2945,6 @@ static int bttv_g_tuner(struct file *file, void *priv,
 	if (btv->audio_mode_gpio)
 		btv->audio_mode_gpio(btv, t, 0);
 
-	mutex_unlock(&btv->lock);
 	return 0;
 }
 
@@ -3015,9 +2953,7 @@ static int bttv_g_priority(struct file *file, void *f, enum v4l2_priority *p)
 	struct bttv_fh *fh = f;
 	struct bttv *btv = fh->btv;
 
-	mutex_lock(&btv->lock);
 	*p = v4l2_prio_max(&btv->prio);
-	mutex_unlock(&btv->lock);
 
 	return 0;
 }
@@ -3029,9 +2965,7 @@ static int bttv_s_priority(struct file *file, void *f,
 	struct bttv *btv = fh->btv;
 	int	rc;
 
-	mutex_lock(&btv->lock);
 	rc = v4l2_prio_change(&btv->prio, &fh->prio, prio);
-	mutex_unlock(&btv->lock);
 
 	return rc;
 }
@@ -3046,9 +2980,7 @@ static int bttv_cropcap(struct file *file, void *priv,
 	    cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
 		return -EINVAL;
 
-	mutex_lock(&btv->lock);
 	*cap = bttv_tvnorms[btv->tvnorm].cropcap;
-	mutex_unlock(&btv->lock);
 
 	return 0;
 }
@@ -3066,9 +2998,7 @@ static int bttv_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
 	   inconsistent with fh->width or fh->height and apps
 	   do not expect a change here. */
 
-	mutex_lock(&btv->lock);
 	crop->c = btv->crop[!!fh->do_crop].rect;
-	mutex_unlock(&btv->lock);
 
 	return 0;
 }
@@ -3092,17 +3022,14 @@ static int bttv_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
 	/* Make sure tvnorm, vbi_end and the current cropping
 	   parameters remain consistent until we're done. Note
 	   read() may change vbi_end in check_alloc_btres_lock(). */
-	mutex_lock(&btv->lock);
 	retval = v4l2_prio_check(&btv->prio, fh->prio);
 	if (0 != retval) {
-		mutex_unlock(&btv->lock);
 		return retval;
 	}
 
 	retval = -EBUSY;
 
 	if (locked_btres(fh->btv, VIDEO_RESOURCES)) {
-		mutex_unlock(&btv->lock);
 		return retval;
 	}
 
@@ -3114,7 +3041,6 @@ static int bttv_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
 
 	b_top = max(b->top, btv->vbi_end);
 	if (b_top + 32 >= b_bottom) {
-		mutex_unlock(&btv->lock);
 		return retval;
 	}
 
@@ -3137,12 +3063,8 @@ static int bttv_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
 
 	btv->crop[1] = c;
 
-	mutex_unlock(&btv->lock);
-
 	fh->do_crop = 1;
 
-	mutex_lock(&fh->cap.vb_lock);
-
 	if (fh->width < c.min_scaled_width) {
 		fh->width = c.min_scaled_width;
 		btv->init.width = c.min_scaled_width;
@@ -3159,8 +3081,6 @@ static int bttv_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
 		btv->init.height = c.max_scaled_height;
 	}
 
-	mutex_unlock(&fh->cap.vb_lock);
-
 	return 0;
 }
 
@@ -3228,7 +3148,6 @@ static unsigned int bttv_poll(struct file *file, poll_table *wait)
 		return videobuf_poll_stream(file, &fh->vbi, wait);
 	}
 
-	mutex_lock(&fh->cap.vb_lock);
 	if (check_btres(fh,RESOURCE_VIDEO_STREAM)) {
 		/* streaming capture */
 		if (list_empty(&fh->cap.stream))
@@ -3263,7 +3182,6 @@ static unsigned int bttv_poll(struct file *file, poll_table *wait)
 	else
 		rc = 0;
 err:
-	mutex_unlock(&fh->cap.vb_lock);
 	return rc;
 }
 
@@ -3294,23 +3212,11 @@ static int bttv_open(struct file *file)
 		return -ENOMEM;
 	file->private_data = fh;
 
-	/*
-	 * btv is protected by btv->lock mutex, while btv->init and other
-	 * streaming vars are protected by fh->cap.vb_lock. We need to take
-	 * care of both locks to avoid troubles. However, vb_lock is used also
-	 * inside videobuf, without calling buf->lock. So, it is a very bad
-	 * idea to hold both locks at the same time.
-	 * Let's first copy btv->init at fh, holding cap.vb_lock, and then work
-	 * with the rest of init, holding btv->lock.
-	 */
-	mutex_lock(&fh->cap.vb_lock);
 	*fh = btv->init;
-	mutex_unlock(&fh->cap.vb_lock);
 
 	fh->type = type;
 	fh->ov.setup_ok = 0;
 
-	mutex_lock(&btv->lock);
 	v4l2_prio_open(&btv->prio, &fh->prio);
 
 	videobuf_queue_sg_init(&fh->cap, &bttv_video_qops,
@@ -3318,13 +3224,13 @@ static int bttv_open(struct file *file)
 			    V4L2_BUF_TYPE_VIDEO_CAPTURE,
 			    V4L2_FIELD_INTERLACED,
 			    sizeof(struct bttv_buffer),
-			    fh, NULL);
+			    fh, &btv->lock);
 	videobuf_queue_sg_init(&fh->vbi, &bttv_vbi_qops,
 			    &btv->c.pci->dev, &btv->s_lock,
 			    V4L2_BUF_TYPE_VBI_CAPTURE,
 			    V4L2_FIELD_SEQ_TB,
 			    sizeof(struct bttv_buffer),
-			    fh, NULL);
+			    fh, &btv->lock);
 	set_tvnorm(btv,btv->tvnorm);
 	set_input(btv, btv->input, btv->tvnorm);
 
@@ -3347,7 +3253,6 @@ static int bttv_open(struct file *file)
 	bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm);
 
 	bttv_field_count(btv);
-	mutex_unlock(&btv->lock);
 	return 0;
 }
 
@@ -3356,7 +3261,6 @@ static int bttv_release(struct file *file)
 	struct bttv_fh *fh = file->private_data;
 	struct bttv *btv = fh->btv;
 
-	mutex_lock(&btv->lock);
 	/* turn off overlay */
 	if (check_btres(fh, RESOURCE_OVERLAY))
 		bttv_switch_overlay(btv,fh,NULL);
@@ -3382,14 +3286,8 @@ static int bttv_release(struct file *file)
 
 	/* free stuff */
 
-	/*
-	 * videobuf uses cap.vb_lock - we should avoid holding btv->lock,
-	 * otherwise we may have dead lock conditions
-	 */
-	mutex_unlock(&btv->lock);
 	videobuf_mmap_free(&fh->cap);
 	videobuf_mmap_free(&fh->vbi);
-	mutex_lock(&btv->lock);
 	v4l2_prio_close(&btv->prio, fh->prio);
 	file->private_data = NULL;
 	kfree(fh);
@@ -3399,7 +3297,6 @@ static int bttv_release(struct file *file)
 
 	if (!btv->users)
 		audio_mute(btv, 1);
-	mutex_unlock(&btv->lock);
 
 	return 0;
 }
@@ -3503,11 +3400,8 @@ static int radio_open(struct file *file)
 	if (unlikely(!fh))
 		return -ENOMEM;
 	file->private_data = fh;
-	mutex_lock(&fh->cap.vb_lock);
 	*fh = btv->init;
-	mutex_unlock(&fh->cap.vb_lock);
 
-	mutex_lock(&btv->lock);
 	v4l2_prio_open(&btv->prio, &fh->prio);
 
 	btv->radio_user++;
@@ -3515,7 +3409,6 @@ static int radio_open(struct file *file)
 	bttv_call_all(btv, tuner, s_radio);
 	audio_input(btv,TVAUDIO_INPUT_RADIO);
 
-	mutex_unlock(&btv->lock);
 	return 0;
 }
 
@@ -3525,7 +3418,6 @@ static int radio_release(struct file *file)
 	struct bttv *btv = fh->btv;
 	struct rds_command cmd;
 
-	mutex_lock(&btv->lock);
 	v4l2_prio_close(&btv->prio, fh->prio);
 	file->private_data = NULL;
 	kfree(fh);
@@ -3533,7 +3425,6 @@ static int radio_release(struct file *file)
 	btv->radio_user--;
 
 	bttv_call_all(btv, core, ioctl, RDS_CMD_CLOSE, &cmd);
-	mutex_unlock(&btv->lock);
 
 	return 0;
 }
@@ -3562,7 +3453,6 @@ static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
 		return -EINVAL;
 	if (0 != t->index)
 		return -EINVAL;
-	mutex_lock(&btv->lock);
 	strcpy(t->name, "Radio");
 	t->type = V4L2_TUNER_RADIO;
 
@@ -3571,8 +3461,6 @@ static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
 	if (btv->audio_mode_gpio)
 		btv->audio_mode_gpio(btv, t, 0);
 
-	mutex_unlock(&btv->lock);
-
 	return 0;
 }
 
@@ -3693,7 +3581,7 @@ static const struct v4l2_file_operations radio_fops =
 	.open	  = radio_open,
 	.read     = radio_read,
 	.release  = radio_release,
-	.ioctl	  = video_ioctl2,
+	.unlocked_ioctl = video_ioctl2,
 	.poll     = radio_poll,
 };
 
diff --git a/drivers/media/video/bw-qcam.c b/drivers/media/video/bw-qcam.c
index 935e0c9..c119350 100644
--- a/drivers/media/video/bw-qcam.c
+++ b/drivers/media/video/bw-qcam.c
@@ -860,7 +860,7 @@ static ssize_t qcam_read(struct file *file, char __user *buf,
 
 static const struct v4l2_file_operations qcam_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl          = video_ioctl2,
+	.unlocked_ioctl = video_ioctl2,
 	.read		= qcam_read,
 };
 
diff --git a/drivers/media/video/c-qcam.c b/drivers/media/video/c-qcam.c
index 6e4b196..24fc009 100644
--- a/drivers/media/video/c-qcam.c
+++ b/drivers/media/video/c-qcam.c
@@ -718,7 +718,7 @@ static ssize_t qcam_read(struct file *file, char __user *buf,
 
 static const struct v4l2_file_operations qcam_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 	.read		= qcam_read,
 };
 
diff --git a/drivers/media/video/cafe_ccic.c b/drivers/media/video/cafe_ccic.c
index 2934770..0dfff50 100644
--- a/drivers/media/video/cafe_ccic.c
+++ b/drivers/media/video/cafe_ccic.c
@@ -1775,7 +1775,7 @@ static const struct v4l2_file_operations cafe_v4l_fops = {
 	.read = cafe_v4l_read,
 	.poll = cafe_v4l_poll,
 	.mmap = cafe_v4l_mmap,
-	.ioctl = video_ioctl2,
+	.unlocked_ioctl = video_ioctl2,
 };
 
 static const struct v4l2_ioctl_ops cafe_v4l_ioctl_ops = {
@@ -2065,8 +2065,8 @@ static int cafe_pci_probe(struct pci_dev *pdev,
 		sensor_cfg.clock_speed = 45;
 
 	cam->sensor_addr = 0x42;
-	cam->sensor = v4l2_i2c_new_subdev(&cam->v4l2_dev, &cam->i2c_adapter,
-			NULL, "ov7670", cam->sensor_addr, NULL);
+	cam->sensor = v4l2_i2c_new_subdev_cfg(&cam->v4l2_dev, &cam->i2c_adapter,
+			"ov7670", 0, &sensor_cfg, cam->sensor_addr, NULL);
 	if (cam->sensor == NULL) {
 		ret = -ENODEV;
 		goto out_smbus;
diff --git a/drivers/media/video/cx18/cx18-alsa-pcm.c b/drivers/media/video/cx18/cx18-alsa-pcm.c
index 8f55692..82d195b 100644
--- a/drivers/media/video/cx18/cx18-alsa-pcm.c
+++ b/drivers/media/video/cx18/cx18-alsa-pcm.c
@@ -218,7 +218,13 @@ static int snd_cx18_pcm_capture_close(struct snd_pcm_substream *substream)
 static int snd_cx18_pcm_ioctl(struct snd_pcm_substream *substream,
 		     unsigned int cmd, void *arg)
 {
-	return snd_pcm_lib_ioctl(substream, cmd, arg);
+	struct snd_cx18_card *cxsc = snd_pcm_substream_chip(substream);
+	int ret;
+
+	snd_cx18_lock(cxsc);
+	ret = snd_pcm_lib_ioctl(substream, cmd, arg);
+	snd_cx18_unlock(cxsc);
+	return ret;
 }
 
 
diff --git a/drivers/media/video/cx18/cx18-i2c.c b/drivers/media/video/cx18/cx18-i2c.c
index a09caf8..e71a026 100644
--- a/drivers/media/video/cx18/cx18-i2c.c
+++ b/drivers/media/video/cx18/cx18-i2c.c
@@ -122,15 +122,15 @@ int cx18_i2c_register(struct cx18 *cx, unsigned idx)
 	if (hw == CX18_HW_TUNER) {
 		/* special tuner group handling */
 		sd = v4l2_i2c_new_subdev(&cx->v4l2_dev,
-				adap, NULL, type, 0, cx->card_i2c->radio);
+				adap, type, 0, cx->card_i2c->radio);
 		if (sd != NULL)
 			sd->grp_id = hw;
 		sd = v4l2_i2c_new_subdev(&cx->v4l2_dev,
-				adap, NULL, type, 0, cx->card_i2c->demod);
+				adap, type, 0, cx->card_i2c->demod);
 		if (sd != NULL)
 			sd->grp_id = hw;
 		sd = v4l2_i2c_new_subdev(&cx->v4l2_dev,
-				adap, NULL, type, 0, cx->card_i2c->tv);
+				adap, type, 0, cx->card_i2c->tv);
 		if (sd != NULL)
 			sd->grp_id = hw;
 		return sd != NULL ? 0 : -1;
@@ -144,7 +144,7 @@ int cx18_i2c_register(struct cx18 *cx, unsigned idx)
 		return -1;
 
 	/* It's an I2C device other than an analog tuner or IR chip */
-	sd = v4l2_i2c_new_subdev(&cx->v4l2_dev, adap, NULL, type, hw_addrs[idx],
+	sd = v4l2_i2c_new_subdev(&cx->v4l2_dev, adap, type, hw_addrs[idx],
 				 NULL);
 	if (sd != NULL)
 		sd->grp_id = hw;
diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c
index 9045f1e..ab461e2 100644
--- a/drivers/media/video/cx18/cx18-streams.c
+++ b/drivers/media/video/cx18/cx18-streams.c
@@ -41,7 +41,7 @@ static struct v4l2_file_operations cx18_v4l2_enc_fops = {
 	.read = cx18_v4l2_read,
 	.open = cx18_v4l2_open,
 	/* FIXME change to video_ioctl2 if serialization lock can be removed */
-	.ioctl = cx18_v4l2_ioctl,
+	.unlocked_ioctl = cx18_v4l2_ioctl,
 	.release = cx18_v4l2_close,
 	.poll = cx18_v4l2_enc_poll,
 };
diff --git a/drivers/media/video/cx231xx/cx231xx-417.c b/drivers/media/video/cx231xx/cx231xx-417.c
index aab21f3..4c7cac3 100644
--- a/drivers/media/video/cx231xx/cx231xx-417.c
+++ b/drivers/media/video/cx231xx/cx231xx-417.c
@@ -31,7 +31,6 @@
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/firmware.h>
-#include <linux/smp_lock.h>
 #include <linux/vmalloc.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
@@ -1927,10 +1926,9 @@ static int mpeg_open(struct file *file)
 			dev = h;
 	}
 
-	if (dev == NULL) {
-		unlock_kernel();
+	if (dev == NULL)
 		return -ENODEV;
-	}
+
 	mutex_lock(&dev->lock);
 
 	/* allocate + initialize per filehandle data */
diff --git a/drivers/media/video/cx231xx/cx231xx-cards.c b/drivers/media/video/cx231xx/cx231xx-cards.c
index 56c2d81..2c78d18 100644
--- a/drivers/media/video/cx231xx/cx231xx-cards.c
+++ b/drivers/media/video/cx231xx/cx231xx-cards.c
@@ -560,7 +560,7 @@ void cx231xx_card_setup(struct cx231xx *dev)
 	if (dev->board.decoder == CX231XX_AVDECODER) {
 		dev->sd_cx25840 = v4l2_i2c_new_subdev(&dev->v4l2_dev,
 					&dev->i2c_bus[0].i2c_adap,
-					NULL, "cx25840", 0x88 >> 1, NULL);
+					"cx25840", 0x88 >> 1, NULL);
 		if (dev->sd_cx25840 == NULL)
 			cx231xx_info("cx25840 subdev registration failure\n");
 		cx25840_call(dev, core, load_fw);
@@ -571,7 +571,7 @@ void cx231xx_card_setup(struct cx231xx *dev)
 	if (dev->board.tuner_type != TUNER_ABSENT) {
 		dev->sd_tuner = v4l2_i2c_new_subdev(&dev->v4l2_dev,
 						    &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
-						    NULL, "tuner",
+						    "tuner",
 						    dev->tuner_addr, NULL);
 		if (dev->sd_tuner == NULL)
 			cx231xx_info("tuner subdev registration failure\n");
diff --git a/drivers/media/video/cx23885/cx23885-417.c b/drivers/media/video/cx23885/cx23885-417.c
index a6cc12f..9a98dc5 100644
--- a/drivers/media/video/cx23885/cx23885-417.c
+++ b/drivers/media/video/cx23885/cx23885-417.c
@@ -31,7 +31,6 @@
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/firmware.h>
-#include <linux/smp_lock.h>
 #include <linux/slab.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
@@ -1576,12 +1575,8 @@ static int mpeg_open(struct file *file)
 
 	/* allocate + initialize per filehandle data */
 	fh = kzalloc(sizeof(*fh), GFP_KERNEL);
-	if (NULL == fh) {
-		unlock_kernel();
+	if (!fh)
 		return -ENOMEM;
-	}
-
-	lock_kernel();
 
 	file->private_data = fh;
 	fh->dev      = dev;
@@ -1592,8 +1587,6 @@ static int mpeg_open(struct file *file)
 			    V4L2_FIELD_INTERLACED,
 			    sizeof(struct cx23885_buffer),
 			    fh, NULL);
-	unlock_kernel();
-
 	return 0;
 }
 
diff --git a/drivers/media/video/cx23885/cx23885-cards.c b/drivers/media/video/cx23885/cx23885-cards.c
index db05400..8861309 100644
--- a/drivers/media/video/cx23885/cx23885-cards.c
+++ b/drivers/media/video/cx23885/cx23885-cards.c
@@ -1247,7 +1247,7 @@ void cx23885_card_setup(struct cx23885_dev *dev)
 	case CX23885_BOARD_LEADTEK_WINFAST_PXTV1200:
 		dev->sd_cx25840 = v4l2_i2c_new_subdev(&dev->v4l2_dev,
 				&dev->i2c_bus[2].i2c_adap,
-				NULL, "cx25840", 0x88 >> 1, NULL);
+				"cx25840", 0x88 >> 1, NULL);
 		if (dev->sd_cx25840) {
 			dev->sd_cx25840->grp_id = CX23885_HW_AV_CORE;
 			v4l2_subdev_call(dev->sd_cx25840, core, load_fw);
diff --git a/drivers/media/video/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c
index 93af9c6..8b2fb8a 100644
--- a/drivers/media/video/cx23885/cx23885-video.c
+++ b/drivers/media/video/cx23885/cx23885-video.c
@@ -26,7 +26,6 @@
 #include <linux/kmod.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 #include <linux/kthread.h>
@@ -743,8 +742,6 @@ static int video_open(struct file *file)
 	if (NULL == fh)
 		return -ENOMEM;
 
-	lock_kernel();
-
 	file->private_data = fh;
 	fh->dev      = dev;
 	fh->radio    = radio;
@@ -762,8 +759,6 @@ static int video_open(struct file *file)
 
 	dprintk(1, "post videobuf_queue_init()\n");
 
-	unlock_kernel();
-
 	return 0;
 }
 
@@ -1512,10 +1507,10 @@ int cx23885_video_register(struct cx23885_dev *dev)
 		if (dev->tuner_addr)
 			sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
 				&dev->i2c_bus[1].i2c_adap,
-				NULL, "tuner", dev->tuner_addr, NULL);
+				"tuner", dev->tuner_addr, NULL);
 		else
 			sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
-				&dev->i2c_bus[1].i2c_adap, NULL,
+				&dev->i2c_bus[1].i2c_adap,
 				"tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_TV));
 		if (sd) {
 			struct tuner_setup tun_setup;
diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c
index 417d1d5..d7c9484 100644
--- a/drivers/media/video/cx88/cx88-blackbird.c
+++ b/drivers/media/video/cx88/cx88-blackbird.c
@@ -33,7 +33,6 @@
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/firmware.h>
-#include <linux/smp_lock.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
 #include <media/cx2341x.h>
diff --git a/drivers/media/video/cx88/cx88-cards.c b/drivers/media/video/cx88/cx88-cards.c
index b26fcba..9b9e169 100644
--- a/drivers/media/video/cx88/cx88-cards.c
+++ b/drivers/media/video/cx88/cx88-cards.c
@@ -3515,19 +3515,18 @@ struct cx88_core *cx88_core_create(struct pci_dev *pci, int nr)
 		   later code configures a tea5767.
 		 */
 		v4l2_i2c_new_subdev(&core->v4l2_dev, &core->i2c_adap,
-				NULL, "tuner",
-				0, v4l2_i2c_tuner_addrs(ADDRS_RADIO));
+				"tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_RADIO));
 		if (has_demod)
 			v4l2_i2c_new_subdev(&core->v4l2_dev,
-				&core->i2c_adap, NULL, "tuner",
+				&core->i2c_adap, "tuner",
 				0, v4l2_i2c_tuner_addrs(ADDRS_DEMOD));
 		if (core->board.tuner_addr == ADDR_UNSET) {
 			v4l2_i2c_new_subdev(&core->v4l2_dev,
-				&core->i2c_adap, NULL, "tuner",
+				&core->i2c_adap, "tuner",
 				0, has_demod ? tv_addrs + 4 : tv_addrs);
 		} else {
 			v4l2_i2c_new_subdev(&core->v4l2_dev, &core->i2c_adap,
-				NULL, "tuner", core->board.tuner_addr, NULL);
+				"tuner", core->board.tuner_addr, NULL);
 		}
 	}
 
diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c
index d2f159d..62cea95 100644
--- a/drivers/media/video/cx88/cx88-video.c
+++ b/drivers/media/video/cx88/cx88-video.c
@@ -31,7 +31,6 @@
 #include <linux/kmod.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/interrupt.h>
 #include <linux/dma-mapping.h>
 #include <linux/delay.h>
@@ -1896,14 +1895,13 @@ static int __devinit cx8800_initdev(struct pci_dev *pci_dev,
 
 	if (core->board.audio_chip == V4L2_IDENT_WM8775)
 		v4l2_i2c_new_subdev(&core->v4l2_dev, &core->i2c_adap,
-				NULL, "wm8775", 0x36 >> 1, NULL);
+				"wm8775", 0x36 >> 1, NULL);
 
 	if (core->board.audio_chip == V4L2_IDENT_TVAUDIO) {
 		/* This probes for a tda9874 as is used on some
 		   Pixelview Ultra boards. */
-		v4l2_i2c_new_subdev(&core->v4l2_dev,
-				&core->i2c_adap,
-				NULL, "tvaudio", 0, I2C_ADDRS(0xb0 >> 1));
+		v4l2_i2c_new_subdev(&core->v4l2_dev, &core->i2c_adap,
+				"tvaudio", 0, I2C_ADDRS(0xb0 >> 1));
 	}
 
 	switch (core->boardnr) {
diff --git a/drivers/media/video/davinci/vpfe_capture.c b/drivers/media/video/davinci/vpfe_capture.c
index d8e38cc..7333a9b 100644
--- a/drivers/media/video/davinci/vpfe_capture.c
+++ b/drivers/media/video/davinci/vpfe_capture.c
@@ -1986,7 +1986,6 @@ static __init int vpfe_probe(struct platform_device *pdev)
 		vpfe_dev->sd[i] =
 			v4l2_i2c_new_subdev_board(&vpfe_dev->v4l2_dev,
 						  i2c_adap,
-						  NULL,
 						  &sdinfo->board_info,
 						  NULL);
 		if (vpfe_dev->sd[i]) {
diff --git a/drivers/media/video/davinci/vpif_capture.c b/drivers/media/video/davinci/vpif_capture.c
index 6ac6acd..193abab 100644
--- a/drivers/media/video/davinci/vpif_capture.c
+++ b/drivers/media/video/davinci/vpif_capture.c
@@ -2013,7 +2013,6 @@ static __init int vpif_probe(struct platform_device *pdev)
 		vpif_obj.sd[i] =
 			v4l2_i2c_new_subdev_board(&vpif_obj.v4l2_dev,
 						  i2c_adap,
-						  NULL,
 						  &subdevdata->board_info,
 						  NULL);
 
diff --git a/drivers/media/video/davinci/vpif_display.c b/drivers/media/video/davinci/vpif_display.c
index 685f6a6..412c65d 100644
--- a/drivers/media/video/davinci/vpif_display.c
+++ b/drivers/media/video/davinci/vpif_display.c
@@ -1553,7 +1553,7 @@ static __init int vpif_probe(struct platform_device *pdev)
 
 	for (i = 0; i < subdev_count; i++) {
 		vpif_obj.sd[i] = v4l2_i2c_new_subdev_board(&vpif_obj.v4l2_dev,
-						i2c_adap, NULL,
+						i2c_adap,
 						&subdevdata[i].board_info,
 						NULL);
 		if (!vpif_obj.sd[i]) {
diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c
index 5485923..f7e9168 100644
--- a/drivers/media/video/em28xx/em28xx-cards.c
+++ b/drivers/media/video/em28xx/em28xx-cards.c
@@ -2554,39 +2554,39 @@ void em28xx_card_setup(struct em28xx *dev)
 	/* request some modules */
 	if (dev->board.has_msp34xx)
 		v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
-			NULL, "msp3400", 0, msp3400_addrs);
+			"msp3400", 0, msp3400_addrs);
 
 	if (dev->board.decoder == EM28XX_SAA711X)
 		v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
-			NULL, "saa7115_auto", 0, saa711x_addrs);
+			"saa7115_auto", 0, saa711x_addrs);
 
 	if (dev->board.decoder == EM28XX_TVP5150)
 		v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
-			NULL, "tvp5150", 0, tvp5150_addrs);
+			"tvp5150", 0, tvp5150_addrs);
 
 	if (dev->em28xx_sensor == EM28XX_MT9V011) {
 		struct v4l2_subdev *sd;
 
 		sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
-			 &dev->i2c_adap, NULL, "mt9v011", 0, mt9v011_addrs);
+			 &dev->i2c_adap, "mt9v011", 0, mt9v011_addrs);
 		v4l2_subdev_call(sd, core, s_config, 0, &dev->sensor_xtal);
 	}
 
 
 	if (dev->board.adecoder == EM28XX_TVAUDIO)
 		v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
-			NULL, "tvaudio", dev->board.tvaudio_addr, NULL);
+			"tvaudio", dev->board.tvaudio_addr, NULL);
 
 	if (dev->board.tuner_type != TUNER_ABSENT) {
 		int has_demod = (dev->tda9887_conf & TDA9887_PRESENT);
 
 		if (dev->board.radio.type)
 			v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
-				NULL, "tuner", dev->board.radio_addr, NULL);
+				"tuner", dev->board.radio_addr, NULL);
 
 		if (has_demod)
 			v4l2_i2c_new_subdev(&dev->v4l2_dev,
-				&dev->i2c_adap, NULL, "tuner",
+				&dev->i2c_adap, "tuner",
 				0, v4l2_i2c_tuner_addrs(ADDRS_DEMOD));
 		if (dev->tuner_addr == 0) {
 			enum v4l2_i2c_tuner_type type =
@@ -2594,14 +2594,14 @@ void em28xx_card_setup(struct em28xx *dev)
 			struct v4l2_subdev *sd;
 
 			sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
-				&dev->i2c_adap, NULL, "tuner",
+				&dev->i2c_adap, "tuner",
 				0, v4l2_i2c_tuner_addrs(type));
 
 			if (sd)
 				dev->tuner_addr = v4l2_i2c_subdev_addr(sd);
 		} else {
 			v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
-				NULL, "tuner", dev->tuner_addr, NULL);
+				"tuner", dev->tuner_addr, NULL);
 		}
 	}
 
diff --git a/drivers/media/video/et61x251/et61x251_core.c b/drivers/media/video/et61x251/et61x251_core.c
index a5cfc76..bb16409 100644
--- a/drivers/media/video/et61x251/et61x251_core.c
+++ b/drivers/media/video/et61x251/et61x251_core.c
@@ -2530,7 +2530,7 @@ static const struct v4l2_file_operations et61x251_fops = {
 	.owner = THIS_MODULE,
 	.open =    et61x251_open,
 	.release = et61x251_release,
-	.ioctl =   et61x251_ioctl,
+	.unlocked_ioctl =   et61x251_ioctl,
 	.read =    et61x251_read,
 	.poll =    et61x251_poll,
 	.mmap =    et61x251_mmap,
diff --git a/drivers/media/video/fsl-viu.c b/drivers/media/video/fsl-viu.c
index 9a075d8..b8faff2 100644
--- a/drivers/media/video/fsl-viu.c
+++ b/drivers/media/video/fsl-viu.c
@@ -1486,7 +1486,7 @@ static int __devinit viu_of_probe(struct platform_device *op,
 
 	ad = i2c_get_adapter(0);
 	viu_dev->decoder = v4l2_i2c_new_subdev(&viu_dev->v4l2_dev, ad,
-			NULL, "saa7113", VIU_VIDEO_DECODER_ADDR, NULL);
+			"saa7113", VIU_VIDEO_DECODER_ADDR, NULL);
 
 	viu_dev->vidq.timeout.function = viu_vid_timeout;
 	viu_dev->vidq.timeout.data     = (unsigned long)viu_dev;
diff --git a/drivers/media/video/gspca/sonixj.c b/drivers/media/video/gspca/sonixj.c
index 330dadc..e23de57 100644
--- a/drivers/media/video/gspca/sonixj.c
+++ b/drivers/media/video/gspca/sonixj.c
@@ -63,7 +63,10 @@ struct sd {
 #define QUALITY_DEF 80
 	u8 jpegqual;			/* webcam quality */
 
+	u8 reg01;
+	u8 reg17;
 	u8 reg18;
+	u8 flags;
 
 	s8 ag_cnt;
 #define AG_CNT_START 13
@@ -96,6 +99,22 @@ enum sensors {
 	SENSOR_SP80708,
 };
 
+/* device flags */
+#define PDN_INV	1		/* inverse pin S_PWR_DN / sn_xxx tables */
+
+/* sn9c1xx definitions */
+/* register 0x01 */
+#define S_PWR_DN	0x01	/* sensor power down */
+#define S_PDN_INV	0x02	/* inverse pin S_PWR_DN */
+#define V_TX_EN		0x04	/* video transfer enable */
+#define LED		0x08	/* output to pin LED */
+#define SCL_SEL_OD	0x20	/* open-drain mode */
+#define SYS_SEL_48M	0x40	/* system clock 0: 24MHz, 1: 48MHz */
+/* register 0x17 */
+#define MCK_SIZE_MASK	0x1f	/* sensor master clock */
+#define SEN_CLK_EN	0x20	/* enable sensor clock */
+#define DEF_EN		0x80	/* defect pixel by 0: soft, 1: hard */
+
 /* V4L2 controls supported by the driver */
 static void setbrightness(struct gspca_dev *gspca_dev);
 static void setcontrast(struct gspca_dev *gspca_dev);
@@ -1755,141 +1774,6 @@ static void po2030n_probe(struct gspca_dev *gspca_dev)
 	}
 }
 
-static void bridge_init(struct gspca_dev *gspca_dev,
-			  const u8 *sn9c1xx)
-{
-	struct sd *sd = (struct sd *) gspca_dev;
-	u8 reg0102[2];
-	const u8 *reg9a;
-	static const u8 reg9a_def[] =
-		{0x00, 0x40, 0x20, 0x00, 0x00, 0x00};
-	static const u8 reg9a_spec[] =
-		{0x00, 0x40, 0x38, 0x30, 0x00, 0x20};
-	static const u8 regd4[] = {0x60, 0x00, 0x00};
-
-	/* sensor clock already enabled in sd_init */
-	/* reg_w1(gspca_dev, 0xf1, 0x00); */
-	reg_w1(gspca_dev, 0x01, sn9c1xx[1]);
-
-	/* configure gpio */
-	reg0102[0] = sn9c1xx[1];
-	reg0102[1] = sn9c1xx[2];
-	if (gspca_dev->audio)
-		reg0102[1] |= 0x04;	/* keep the audio connection */
-	reg_w(gspca_dev, 0x01, reg0102, 2);
-	reg_w(gspca_dev, 0x08, &sn9c1xx[8], 2);
-	reg_w(gspca_dev, 0x17, &sn9c1xx[0x17], 5);
-	switch (sd->sensor) {
-	case SENSOR_GC0307:
-	case SENSOR_OV7660:
-	case SENSOR_PO1030:
-	case SENSOR_PO2030N:
-	case SENSOR_SOI768:
-	case SENSOR_SP80708:
-		reg9a = reg9a_spec;
-		break;
-	default:
-		reg9a = reg9a_def;
-		break;
-	}
-	reg_w(gspca_dev, 0x9a, reg9a, 6);
-
-	reg_w(gspca_dev, 0xd4, regd4, sizeof regd4);
-
-	reg_w(gspca_dev, 0x03, &sn9c1xx[3], 0x0f);
-
-	switch (sd->sensor) {
-	case SENSOR_ADCM1700:
-		reg_w1(gspca_dev, 0x01, 0x43);
-		reg_w1(gspca_dev, 0x17, 0x62);
-		reg_w1(gspca_dev, 0x01, 0x42);
-		reg_w1(gspca_dev, 0x01, 0x42);
-		break;
-	case SENSOR_GC0307:
-		msleep(50);
-		reg_w1(gspca_dev, 0x01, 0x61);
-		reg_w1(gspca_dev, 0x17, 0x22);
-		reg_w1(gspca_dev, 0x01, 0x60);
-		reg_w1(gspca_dev, 0x01, 0x40);
-		msleep(50);
-		break;
-	case SENSOR_MI0360B:
-		reg_w1(gspca_dev, 0x01, 0x61);
-		reg_w1(gspca_dev, 0x17, 0x60);
-		reg_w1(gspca_dev, 0x01, 0x60);
-		reg_w1(gspca_dev, 0x01, 0x40);
-		break;
-	case SENSOR_MT9V111:
-		reg_w1(gspca_dev, 0x01, 0x61);
-		reg_w1(gspca_dev, 0x17, 0x61);
-		reg_w1(gspca_dev, 0x01, 0x60);
-		reg_w1(gspca_dev, 0x01, 0x40);
-		break;
-	case SENSOR_OM6802:
-		msleep(10);
-		reg_w1(gspca_dev, 0x02, 0x73);
-		reg_w1(gspca_dev, 0x17, 0x60);
-		reg_w1(gspca_dev, 0x01, 0x22);
-		msleep(100);
-		reg_w1(gspca_dev, 0x01, 0x62);
-		reg_w1(gspca_dev, 0x17, 0x64);
-		reg_w1(gspca_dev, 0x17, 0x64);
-		reg_w1(gspca_dev, 0x01, 0x42);
-		msleep(10);
-		reg_w1(gspca_dev, 0x01, 0x42);
-		i2c_w8(gspca_dev, om6802_init0[0]);
-		i2c_w8(gspca_dev, om6802_init0[1]);
-		msleep(15);
-		reg_w1(gspca_dev, 0x02, 0x71);
-		msleep(150);
-		break;
-	case SENSOR_OV7630:
-		reg_w1(gspca_dev, 0x01, 0x61);
-		reg_w1(gspca_dev, 0x17, 0xe2);
-		reg_w1(gspca_dev, 0x01, 0x60);
-		reg_w1(gspca_dev, 0x01, 0x40);
-		break;
-	case SENSOR_OV7648:
-		reg_w1(gspca_dev, 0x01, 0x63);
-		reg_w1(gspca_dev, 0x17, 0x20);
-		reg_w1(gspca_dev, 0x01, 0x62);
-		reg_w1(gspca_dev, 0x01, 0x42);
-		break;
-	case SENSOR_PO1030:
-	case SENSOR_SOI768:
-		reg_w1(gspca_dev, 0x01, 0x61);
-		reg_w1(gspca_dev, 0x17, 0x20);
-		reg_w1(gspca_dev, 0x01, 0x60);
-		reg_w1(gspca_dev, 0x01, 0x40);
-		break;
-	case SENSOR_PO2030N:
-	case SENSOR_OV7660:
-		reg_w1(gspca_dev, 0x01, 0x63);
-		reg_w1(gspca_dev, 0x17, 0x20);
-		reg_w1(gspca_dev, 0x01, 0x62);
-		reg_w1(gspca_dev, 0x01, 0x42);
-		break;
-	case SENSOR_SP80708:
-		reg_w1(gspca_dev, 0x01, 0x63);
-		reg_w1(gspca_dev, 0x17, 0x20);
-		reg_w1(gspca_dev, 0x01, 0x62);
-		reg_w1(gspca_dev, 0x01, 0x42);
-		msleep(100);
-		reg_w1(gspca_dev, 0x02, 0x62);
-		break;
-	default:
-/*	case SENSOR_HV7131R: */
-/*	case SENSOR_MI0360: */
-/*	case SENSOR_MO4000: */
-		reg_w1(gspca_dev, 0x01, 0x43);
-		reg_w1(gspca_dev, 0x17, 0x61);
-		reg_w1(gspca_dev, 0x01, 0x42);
-		if (sd->sensor == SENSOR_HV7131R)
-			hv7131r_probe(gspca_dev);
-		break;
-	}
-}
-
 /* this function is called at probe time */
 static int sd_config(struct gspca_dev *gspca_dev,
 			const struct usb_device_id *id)
@@ -1898,7 +1782,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	struct cam *cam;
 
 	sd->bridge = id->driver_info >> 16;
-	sd->sensor = id->driver_info;
+	sd->sensor = id->driver_info >> 8;
+	sd->flags = id->driver_info;
 
 	cam = &gspca_dev->cam;
 	if (sd->sensor == SENSOR_ADCM1700) {
@@ -1929,7 +1814,7 @@ static int sd_init(struct gspca_dev *gspca_dev)
 	/* setup a selector by bridge */
 	reg_w1(gspca_dev, 0xf1, 0x01);
 	reg_r(gspca_dev, 0x00, 1);
-	reg_w1(gspca_dev, 0xf1, gspca_dev->usb_buf[0]);
+	reg_w1(gspca_dev, 0xf1, 0x00);
 	reg_r(gspca_dev, 0x00, 1);		/* get sonix chip id */
 	regF1 = gspca_dev->usb_buf[0];
 	if (gspca_dev->usb_err < 0)
@@ -2423,10 +2308,17 @@ static int sd_start(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 	int i;
-	u8 reg1, reg17;
+	u8 reg01, reg17;
+	u8 reg0102[2];
 	const u8 *sn9c1xx;
 	const u8 (*init)[8];
+	const u8 *reg9a;
 	int mode;
+	static const u8 reg9a_def[] =
+		{0x00, 0x40, 0x20, 0x00, 0x00, 0x00};
+	static const u8 reg9a_spec[] =
+		{0x00, 0x40, 0x38, 0x30, 0x00, 0x20};
+	static const u8 regd4[] = {0x60, 0x00, 0x00};
 	static const u8 C0[] = { 0x2d, 0x2d, 0x3a, 0x05, 0x04, 0x3f };
 	static const u8 CA[] = { 0x28, 0xd8, 0x14, 0xec };
 	static const u8 CA_adcm1700[] =
@@ -2448,7 +2340,85 @@ static int sd_start(struct gspca_dev *gspca_dev)
 
 	/* initialize the bridge */
 	sn9c1xx = sn_tb[sd->sensor];
-	bridge_init(gspca_dev, sn9c1xx);
+
+	/* sensor clock already enabled in sd_init */
+	/* reg_w1(gspca_dev, 0xf1, 0x00); */
+	reg01 = sn9c1xx[1];
+	if (sd->flags & PDN_INV)
+		reg01 ^= S_PDN_INV;		/* power down inverted */
+	reg_w1(gspca_dev, 0x01, reg01);
+
+	/* configure gpio */
+	reg0102[0] = reg01;
+	reg0102[1] = sn9c1xx[2];
+	if (gspca_dev->audio)
+		reg0102[1] |= 0x04;	/* keep the audio connection */
+	reg_w(gspca_dev, 0x01, reg0102, 2);
+	reg_w(gspca_dev, 0x08, &sn9c1xx[8], 2);
+	reg_w(gspca_dev, 0x17, &sn9c1xx[0x17], 5);
+	switch (sd->sensor) {
+	case SENSOR_GC0307:
+	case SENSOR_OV7660:
+	case SENSOR_PO1030:
+	case SENSOR_PO2030N:
+	case SENSOR_SOI768:
+	case SENSOR_SP80708:
+		reg9a = reg9a_spec;
+		break;
+	default:
+		reg9a = reg9a_def;
+		break;
+	}
+	reg_w(gspca_dev, 0x9a, reg9a, 6);
+
+	reg_w(gspca_dev, 0xd4, regd4, sizeof regd4);
+
+	reg_w(gspca_dev, 0x03, &sn9c1xx[3], 0x0f);
+
+	reg17 = sn9c1xx[0x17];
+	switch (sd->sensor) {
+	case SENSOR_GC0307:
+		msleep(50);		/*fixme: is it useful? */
+		break;
+	case SENSOR_OM6802:
+		msleep(10);
+		reg_w1(gspca_dev, 0x02, 0x73);
+		reg17 |= SEN_CLK_EN;
+		reg_w1(gspca_dev, 0x17, reg17);
+		reg_w1(gspca_dev, 0x01, 0x22);
+		msleep(100);
+		reg01 = SCL_SEL_OD | S_PDN_INV;
+		reg17 &= MCK_SIZE_MASK;
+		reg17 |= 0x04;		/* clock / 4 */
+		break;
+	}
+	reg01 |= SYS_SEL_48M;
+	reg_w1(gspca_dev, 0x01, reg01);
+	reg17 |= SEN_CLK_EN;
+	reg_w1(gspca_dev, 0x17, reg17);
+	reg01 &= ~S_PWR_DN;		/* sensor power on */
+	reg_w1(gspca_dev, 0x01, reg01);
+	reg01 &= ~SYS_SEL_48M;
+	reg_w1(gspca_dev, 0x01, reg01);
+
+	switch (sd->sensor) {
+	case SENSOR_HV7131R:
+		hv7131r_probe(gspca_dev);	/*fixme: is it useful? */
+		break;
+	case SENSOR_OM6802:
+		msleep(10);
+		reg_w1(gspca_dev, 0x01, reg01);
+		i2c_w8(gspca_dev, om6802_init0[0]);
+		i2c_w8(gspca_dev, om6802_init0[1]);
+		msleep(15);
+		reg_w1(gspca_dev, 0x02, 0x71);
+		msleep(150);
+		break;
+	case SENSOR_SP80708:
+		msleep(100);
+		reg_w1(gspca_dev, 0x02, 0x62);
+		break;
+	}
 
 	/* initialize the sensor */
 	i2c_w_seq(gspca_dev, sensor_init[sd->sensor]);
@@ -2476,30 +2446,11 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	}
 	reg_w1(gspca_dev, 0x18, sn9c1xx[0x18]);
 	switch (sd->sensor) {
-	case SENSOR_GC0307:
-		reg17 = 0xa2;
-		break;
-	case SENSOR_MT9V111:
-	case SENSOR_MI0360B:
-		reg17 = 0xe0;
-		break;
-	case SENSOR_ADCM1700:
-	case SENSOR_OV7630:
-		reg17 = 0xe2;
-		break;
-	case SENSOR_OV7648:
-		reg17 = 0x20;
-		break;
-	case SENSOR_OV7660:
-	case SENSOR_SOI768:
-		reg17 = 0xa0;
-		break;
-	case SENSOR_PO1030:
-	case SENSOR_PO2030N:
-		reg17 = 0xa0;
+	case SENSOR_OM6802:
+/*	case SENSOR_OV7648:		* fixme: sometimes */
 		break;
 	default:
-		reg17 = 0x60;
+		reg17 |= DEF_EN;
 		break;
 	}
 	reg_w1(gspca_dev, 0x17, reg17);
@@ -2546,95 +2497,67 @@ static int sd_start(struct gspca_dev *gspca_dev)
 
 	init = NULL;
 	mode = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
-	if (mode)
-		reg1 = 0x46;	/* 320x240: clk 48Mhz, video trf enable */
-	else
-		reg1 = 0x06;	/* 640x480: clk 24Mhz, video trf enable */
-	reg17 = 0x61;		/* 0x:20: enable sensor clock */
+	reg01 |= SYS_SEL_48M | V_TX_EN;
+	reg17 &= ~MCK_SIZE_MASK;
+	reg17 |= 0x02;			/* clock / 2 */
 	switch (sd->sensor) {
 	case SENSOR_ADCM1700:
 		init = adcm1700_sensor_param1;
-		reg1 = 0x46;
-		reg17 = 0xe2;
 		break;
 	case SENSOR_GC0307:
 		init = gc0307_sensor_param1;
-		reg17 = 0xa2;
-		reg1 = 0x44;
+		break;
+	case SENSOR_HV7131R:
+	case SENSOR_MI0360:
+		if (mode)
+			reg01 |= SYS_SEL_48M;	/* 320x240: clk 48Mhz */
+		else
+			reg01 &= ~SYS_SEL_48M;	/* 640x480: clk 24Mhz */
+		reg17 &= ~MCK_SIZE_MASK;
+		reg17 |= 0x01;			/* clock / 1 */
 		break;
 	case SENSOR_MI0360B:
 		init = mi0360b_sensor_param1;
-		reg1 &= ~0x02;		/* don't inverse pin S_PWR_DN */
-		reg17 = 0xe2;
 		break;
 	case SENSOR_MO4000:
-		if (mode) {
-/*			reg1 = 0x46;	 * 320 clk 48Mhz 60fp/s */
-			reg1 = 0x06;	/* clk 24Mz */
-		} else {
-			reg17 = 0x22;	/* 640 MCKSIZE */
-/*			reg1 = 0x06;	 * 640 clk 24Mz (done) */
+		if (mode) {			/* if 320x240 */
+			reg01 &= ~SYS_SEL_48M;	/* clk 24Mz */
+			reg17 &= ~MCK_SIZE_MASK;
+			reg17 |= 0x01;		/* clock / 1 */
 		}
 		break;
 	case SENSOR_MT9V111:
 		init = mt9v111_sensor_param1;
-		if (mode) {
-			reg1 = 0x04;	/* 320 clk 48Mhz */
-		} else {
-/*			reg1 = 0x06;	 * 640 clk 24Mz (done) */
-			reg17 = 0xc2;
-		}
 		break;
 	case SENSOR_OM6802:
 		init = om6802_sensor_param1;
-		reg17 = 0x64;		/* 640 MCKSIZE */
+		if (!mode) {			/* if 640x480 */
+			reg17 &= ~MCK_SIZE_MASK;
+			reg17 |= 0x01;		/* clock / 4 */
+		}
 		break;
 	case SENSOR_OV7630:
 		init = ov7630_sensor_param1;
-		reg17 = 0xe2;
-		reg1 = 0x44;
 		break;
 	case SENSOR_OV7648:
 		init = ov7648_sensor_param1;
-		reg17 = 0x21;
-/*		reg1 = 0x42;		 * 42 - 46? */
+		reg17 &= ~MCK_SIZE_MASK;
+		reg17 |= 0x01;			/* clock / 1 */
 		break;
 	case SENSOR_OV7660:
 		init = ov7660_sensor_param1;
-		if (sd->bridge == BRIDGE_SN9C120) {
-			if (mode) {		/* 320x240 - 160x120 */
-				reg17 = 0xa2;
-				reg1 = 0x44;	/* 48 Mhz, video trf eneble */
-			}
-		} else {
-			reg17 = 0x22;
-			reg1 = 0x06;	/* 24 Mhz, video trf eneble
-					 * inverse power down */
-		}
 		break;
 	case SENSOR_PO1030:
 		init = po1030_sensor_param1;
-		reg17 = 0xa2;
-		reg1 = 0x44;
 		break;
 	case SENSOR_PO2030N:
 		init = po2030n_sensor_param1;
-		reg1 = 0x46;
-		reg17 = 0xa2;
 		break;
 	case SENSOR_SOI768:
 		init = soi768_sensor_param1;
-		reg1 = 0x44;
-		reg17 = 0xa2;
 		break;
 	case SENSOR_SP80708:
 		init = sp80708_sensor_param1;
-		if (mode) {
-/*??			reg1 = 0x04;	 * 320 clk 48Mhz */
-		} else {
-			reg1 = 0x46;	 /* 640 clk 48Mz */
-			reg17 = 0xa2;
-		}
 		break;
 	}
 
@@ -2684,7 +2607,9 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	setjpegqual(gspca_dev);
 
 	reg_w1(gspca_dev, 0x17, reg17);
-	reg_w1(gspca_dev, 0x01, reg1);
+	reg_w1(gspca_dev, 0x01, reg01);
+	sd->reg01 = reg01;
+	sd->reg17 = reg17;
 
 	sethvflip(gspca_dev);
 	setbrightness(gspca_dev);
@@ -2706,41 +2631,64 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
 		{ 0xa1, 0x21, 0x76, 0x20, 0x00, 0x00, 0x00, 0x10 };
 	static const u8 stopsoi768[] =
 		{ 0xa1, 0x21, 0x12, 0x80, 0x00, 0x00, 0x00, 0x10 };
-	u8 data;
-	const u8 *sn9c1xx;
+	u8 reg01;
+	u8 reg17;
 
-	data = 0x0b;
+	reg01 = sd->reg01;
+	reg17 = sd->reg17 & ~SEN_CLK_EN;
 	switch (sd->sensor) {
+	case SENSOR_ADCM1700:
 	case SENSOR_GC0307:
-		data = 0x29;
+	case SENSOR_PO2030N:
+	case SENSOR_SP80708:
+		reg01 |= LED;
+		reg_w1(gspca_dev, 0x01, reg01);
+		reg01 &= ~(LED | V_TX_EN);
+		reg_w1(gspca_dev, 0x01, reg01);
+/*		reg_w1(gspca_dev, 0x02, 0x??);	 * LED off ? */
 		break;
 	case SENSOR_HV7131R:
+		reg01 &= ~V_TX_EN;
+		reg_w1(gspca_dev, 0x01, reg01);
 		i2c_w8(gspca_dev, stophv7131);
-		data = 0x2b;
 		break;
 	case SENSOR_MI0360:
 	case SENSOR_MI0360B:
+		reg01 &= ~V_TX_EN;
+		reg_w1(gspca_dev, 0x01, reg01);
+/*		reg_w1(gspca_dev, 0x02, 0x40);	  * LED off ? */
 		i2c_w8(gspca_dev, stopmi0360);
-		data = 0x29;
 		break;
-	case SENSOR_OV7648:
-		i2c_w8(gspca_dev, stopov7648);
-		/* fall thru */
 	case SENSOR_MT9V111:
-	case SENSOR_OV7630:
+	case SENSOR_OM6802:
 	case SENSOR_PO1030:
-		data = 0x29;
+		reg01 &= ~V_TX_EN;
+		reg_w1(gspca_dev, 0x01, reg01);
+		break;
+	case SENSOR_OV7630:
+	case SENSOR_OV7648:
+		reg01 &= ~V_TX_EN;
+		reg_w1(gspca_dev, 0x01, reg01);
+		i2c_w8(gspca_dev, stopov7648);
+		break;
+	case SENSOR_OV7660:
+		reg01 &= ~V_TX_EN;
+		reg_w1(gspca_dev, 0x01, reg01);
 		break;
 	case SENSOR_SOI768:
 		i2c_w8(gspca_dev, stopsoi768);
-		data = 0x29;
 		break;
 	}
-	sn9c1xx = sn_tb[sd->sensor];
-	reg_w1(gspca_dev, 0x01, sn9c1xx[1]);
-	reg_w1(gspca_dev, 0x17, sn9c1xx[0x17]);
-	reg_w1(gspca_dev, 0x01, sn9c1xx[1]);
-	reg_w1(gspca_dev, 0x01, data);
+
+	reg01 |= SCL_SEL_OD;
+	reg_w1(gspca_dev, 0x01, reg01);
+	reg01 |= S_PWR_DN;		/* sensor power down */
+	reg_w1(gspca_dev, 0x01, reg01);
+	reg_w1(gspca_dev, 0x17, reg17);
+	reg01 &= ~SYS_SEL_48M;		/* clock 24MHz */
+	reg_w1(gspca_dev, 0x01, reg01);
+	reg01 |= LED;
+	reg_w1(gspca_dev, 0x01, reg01);
 	/* Don't disable sensor clock as that disables the button on the cam */
 	/* reg_w1(gspca_dev, 0xf1, 0x01); */
 }
@@ -2954,14 +2902,18 @@ static const struct sd_desc sd_desc = {
 /* -- module initialisation -- */
 #define BS(bridge, sensor) \
 	.driver_info = (BRIDGE_ ## bridge << 16) \
-			| SENSOR_ ## sensor
+			| (SENSOR_ ## sensor << 8)
+#define BSF(bridge, sensor, flags) \
+	.driver_info = (BRIDGE_ ## bridge << 16) \
+			| (SENSOR_ ## sensor << 8) \
+			| (flags)
 static const __devinitdata struct usb_device_id device_table[] = {
 #if !defined CONFIG_USB_SN9C102 && !defined CONFIG_USB_SN9C102_MODULE
 	{USB_DEVICE(0x0458, 0x7025), BS(SN9C120, MI0360)},
 	{USB_DEVICE(0x0458, 0x702e), BS(SN9C120, OV7660)},
 #endif
-	{USB_DEVICE(0x045e, 0x00f5), BS(SN9C105, OV7660)},
-	{USB_DEVICE(0x045e, 0x00f7), BS(SN9C105, OV7660)},
+	{USB_DEVICE(0x045e, 0x00f5), BSF(SN9C105, OV7660, PDN_INV)},
+	{USB_DEVICE(0x045e, 0x00f7), BSF(SN9C105, OV7660, PDN_INV)},
 	{USB_DEVICE(0x0471, 0x0327), BS(SN9C105, MI0360)},
 	{USB_DEVICE(0x0471, 0x0328), BS(SN9C105, MI0360)},
 	{USB_DEVICE(0x0471, 0x0330), BS(SN9C105, MI0360)},
diff --git a/drivers/media/video/imx074.c b/drivers/media/video/imx074.c
index 380e459..27b5dfd 100644
--- a/drivers/media/video/imx074.c
+++ b/drivers/media/video/imx074.c
@@ -451,7 +451,6 @@ static int imx074_probe(struct i2c_client *client,
 	ret = imx074_video_probe(icd, client);
 	if (ret < 0) {
 		icd->ops = NULL;
-		i2c_set_clientdata(client, NULL);
 		kfree(priv);
 		return ret;
 	}
@@ -468,7 +467,6 @@ static int imx074_remove(struct i2c_client *client)
 	icd->ops = NULL;
 	if (icl->free_bus)
 		icl->free_bus(icl);
-	i2c_set_clientdata(client, NULL);
 	client->driver = NULL;
 	kfree(priv);
 
diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c
index 5a000c6..ce4a753 100644
--- a/drivers/media/video/ir-kbd-i2c.c
+++ b/drivers/media/video/ir-kbd-i2c.c
@@ -44,7 +44,6 @@
 #include <linux/errno.h>
 #include <linux/slab.h>
 #include <linux/i2c.h>
-#include <linux/i2c-id.h>
 #include <linux/workqueue.h>
 
 #include <media/ir-core.h>
diff --git a/drivers/media/video/ivtv/ivtv-i2c.c b/drivers/media/video/ivtv/ivtv-i2c.c
index 9e8039a..665191c 100644
--- a/drivers/media/video/ivtv/ivtv-i2c.c
+++ b/drivers/media/video/ivtv/ivtv-i2c.c
@@ -239,19 +239,16 @@ int ivtv_i2c_register(struct ivtv *itv, unsigned idx)
 		return -1;
 	if (hw == IVTV_HW_TUNER) {
 		/* special tuner handling */
-		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev,
-				adap, NULL, type,
-				0, itv->card_i2c->radio);
+		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev, adap, type, 0,
+				itv->card_i2c->radio);
 		if (sd)
 			sd->grp_id = 1 << idx;
-		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev,
-				adap, NULL, type,
-				0, itv->card_i2c->demod);
+		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev, adap, type, 0,
+				itv->card_i2c->demod);
 		if (sd)
 			sd->grp_id = 1 << idx;
-		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev,
-				adap, NULL, type,
-				0, itv->card_i2c->tv);
+		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev, adap, type, 0,
+				itv->card_i2c->tv);
 		if (sd)
 			sd->grp_id = 1 << idx;
 		return sd ? 0 : -1;
@@ -267,17 +264,16 @@ int ivtv_i2c_register(struct ivtv *itv, unsigned idx)
 	/* It's an I2C device other than an analog tuner or IR chip */
 	if (hw == IVTV_HW_UPD64031A || hw == IVTV_HW_UPD6408X) {
 		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev,
-				adap, NULL, type, 0, I2C_ADDRS(hw_addrs[idx]));
+				adap, type, 0, I2C_ADDRS(hw_addrs[idx]));
 	} else if (hw == IVTV_HW_CX25840) {
 		struct cx25840_platform_data pdata;
 
 		pdata.pvr150_workaround = itv->pvr150_workaround;
 		sd = v4l2_i2c_new_subdev_cfg(&itv->v4l2_dev,
-				adap, NULL, type, 0, &pdata, hw_addrs[idx],
-				NULL);
+				adap, type, 0, &pdata, hw_addrs[idx], NULL);
 	} else {
 		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev,
-				adap, NULL, type, hw_addrs[idx], NULL);
+				adap, type, hw_addrs[idx], NULL);
 	}
 	if (sd)
 		sd->grp_id = 1 << idx;
diff --git a/drivers/media/video/meye.c b/drivers/media/video/meye.c
index 2be23bc..48d2c24 100644
--- a/drivers/media/video/meye.c
+++ b/drivers/media/video/meye.c
@@ -1659,7 +1659,7 @@ static const struct v4l2_file_operations meye_fops = {
 	.open		= meye_open,
 	.release	= meye_release,
 	.mmap		= meye_mmap,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 	.poll		= meye_poll,
 };
 
@@ -1831,12 +1831,6 @@ static int __devinit meye_probe(struct pci_dev *pcidev,
 	msleep(1);
 	mchip_set(MCHIP_MM_INTA, MCHIP_MM_INTA_HIC_1_MASK);
 
-	if (video_register_device(meye.vdev, VFL_TYPE_GRABBER,
-				  video_nr) < 0) {
-		v4l2_err(v4l2_dev, "video_register_device failed\n");
-		goto outvideoreg;
-	}
-
 	mutex_init(&meye.lock);
 	init_waitqueue_head(&meye.proc_list);
 	meye.brightness = 32 << 10;
@@ -1858,6 +1852,12 @@ static int __devinit meye_probe(struct pci_dev *pcidev,
 	sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAPICTURE, 0);
 	sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAAGC, 48);
 
+	if (video_register_device(meye.vdev, VFL_TYPE_GRABBER,
+				  video_nr) < 0) {
+		v4l2_err(v4l2_dev, "video_register_device failed\n");
+		goto outvideoreg;
+	}
+
 	v4l2_info(v4l2_dev, "Motion Eye Camera Driver v%s.\n",
 	       MEYE_DRIVER_VERSION);
 	v4l2_info(v4l2_dev, "mchip KL5A72002 rev. %d, base %lx, irq %d\n",
diff --git a/drivers/media/video/mx2_camera.c b/drivers/media/video/mx2_camera.c
index 4a27862..072bd2d 100644
--- a/drivers/media/video/mx2_camera.c
+++ b/drivers/media/video/mx2_camera.c
@@ -31,6 +31,7 @@
 
 #include <media/v4l2-common.h>
 #include <media/v4l2-dev.h>
+#include <media/videobuf-core.h>
 #include <media/videobuf-dma-contig.h>
 #include <media/soc_camera.h>
 #include <media/soc_mediabus.h>
@@ -903,8 +904,6 @@ static int mx2_camera_set_crop(struct soc_camera_device *icd,
 static int mx2_camera_set_fmt(struct soc_camera_device *icd,
 			       struct v4l2_format *f)
 {
-	struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
-	struct mx2_camera_dev *pcdev = ici->priv;
 	struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
 	const struct soc_camera_format_xlate *xlate;
 	struct v4l2_pix_format *pix = &f->fmt.pix;
@@ -943,8 +942,6 @@ static int mx2_camera_set_fmt(struct soc_camera_device *icd,
 static int mx2_camera_try_fmt(struct soc_camera_device *icd,
 				  struct v4l2_format *f)
 {
-	struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
-	struct mx2_camera_dev *pcdev = ici->priv;
 	struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
 	const struct soc_camera_format_xlate *xlate;
 	struct v4l2_pix_format *pix = &f->fmt.pix;
@@ -1024,13 +1021,13 @@ static int mx2_camera_querycap(struct soc_camera_host *ici,
 	return 0;
 }
 
-static int mx2_camera_reqbufs(struct soc_camera_file *icf,
+static int mx2_camera_reqbufs(struct soc_camera_device *icd,
 			      struct v4l2_requestbuffers *p)
 {
 	int i;
 
 	for (i = 0; i < p->count; i++) {
-		struct mx2_buffer *buf = container_of(icf->vb_vidq.bufs[i],
+		struct mx2_buffer *buf = container_of(icd->vb_vidq.bufs[i],
 						      struct mx2_buffer, vb);
 		INIT_LIST_HEAD(&buf->vb.queue);
 	}
@@ -1151,9 +1148,9 @@ err_out:
 
 static unsigned int mx2_camera_poll(struct file *file, poll_table *pt)
 {
-	struct soc_camera_file *icf = file->private_data;
+	struct soc_camera_device *icd = file->private_data;
 
-	return videobuf_poll_stream(file, &icf->vb_vidq, pt);
+	return videobuf_poll_stream(file, &icd->vb_vidq, pt);
 }
 
 static struct soc_camera_host_ops mx2_soc_camera_host_ops = {
diff --git a/drivers/media/video/mx3_camera.c b/drivers/media/video/mx3_camera.c
index 29c5fc3..aa871c2 100644
--- a/drivers/media/video/mx3_camera.c
+++ b/drivers/media/video/mx3_camera.c
@@ -27,6 +27,7 @@
 
 #include <mach/ipu.h>
 #include <mach/mx3_camera.h>
+#include <mach/dma.h>
 
 #define MX3_CAM_DRV_NAME "mx3-camera"
 
@@ -638,6 +639,9 @@ static bool chan_filter(struct dma_chan *chan, void *arg)
 	struct dma_chan_request *rq = arg;
 	struct mx3_camera_pdata *pdata;
 
+	if (!imx_dma_is_ipu(chan))
+		return false;
+
 	if (!rq)
 		return false;
 
diff --git a/drivers/media/video/mxb.c b/drivers/media/video/mxb.c
index 94ba698..4e8fd96 100644
--- a/drivers/media/video/mxb.c
+++ b/drivers/media/video/mxb.c
@@ -185,17 +185,17 @@ static int mxb_probe(struct saa7146_dev *dev)
 	}
 
 	mxb->saa7111a = v4l2_i2c_new_subdev(&dev->v4l2_dev, &mxb->i2c_adapter,
-			NULL, "saa7111", I2C_SAA7111A, NULL);
+			"saa7111", I2C_SAA7111A, NULL);
 	mxb->tea6420_1 = v4l2_i2c_new_subdev(&dev->v4l2_dev, &mxb->i2c_adapter,
-			NULL, "tea6420", I2C_TEA6420_1, NULL);
+			"tea6420", I2C_TEA6420_1, NULL);
 	mxb->tea6420_2 = v4l2_i2c_new_subdev(&dev->v4l2_dev, &mxb->i2c_adapter,
-			NULL, "tea6420", I2C_TEA6420_2, NULL);
+			"tea6420", I2C_TEA6420_2, NULL);
 	mxb->tea6415c = v4l2_i2c_new_subdev(&dev->v4l2_dev, &mxb->i2c_adapter,
-			NULL, "tea6415c", I2C_TEA6415C, NULL);
+			"tea6415c", I2C_TEA6415C, NULL);
 	mxb->tda9840 = v4l2_i2c_new_subdev(&dev->v4l2_dev, &mxb->i2c_adapter,
-			NULL, "tda9840", I2C_TDA9840, NULL);
+			"tda9840", I2C_TDA9840, NULL);
 	mxb->tuner = v4l2_i2c_new_subdev(&dev->v4l2_dev, &mxb->i2c_adapter,
-			NULL, "tuner", I2C_TUNER, NULL);
+			"tuner", I2C_TUNER, NULL);
 
 	/* check if all devices are present */
 	if (!mxb->tea6420_1 || !mxb->tea6420_2 || !mxb->tea6415c ||
diff --git a/drivers/media/video/omap1_camera.c b/drivers/media/video/omap1_camera.c
index 7c30e62b..cbfd07f 100644
--- a/drivers/media/video/omap1_camera.c
+++ b/drivers/media/video/omap1_camera.c
@@ -235,7 +235,7 @@ static void free_buffer(struct videobuf_queue *vq, struct omap1_cam_buf *buf,
 
 	BUG_ON(in_interrupt());
 
-	videobuf_waiton(vb, 0, 0);
+	videobuf_waiton(vq, vb, 0, 0);
 
 	if (vb_mode == OMAP1_CAM_DMA_CONTIG) {
 		videobuf_dma_contig_free(vq, vb);
@@ -504,7 +504,7 @@ static void omap1_videobuf_queue(struct videobuf_queue *vq,
 		 * empty. Since the transfer of the DMA programming register set
 		 * content to the DMA working register set is done automatically
 		 * by the DMA hardware, this can pretty well happen while we
-		 * are keeping the lock here. Levae fetching it from the queue
+		 * are keeping the lock here. Leave fetching it from the queue
 		 * to be done when a next DMA interrupt occures instead.
 		 */
 		return;
@@ -1365,12 +1365,12 @@ static void omap1_cam_init_videobuf(struct videobuf_queue *q,
 		videobuf_queue_dma_contig_init(q, &omap1_videobuf_ops,
 				icd->dev.parent, &pcdev->lock,
 				V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_NONE,
-				sizeof(struct omap1_cam_buf), icd);
+				sizeof(struct omap1_cam_buf), icd, NULL);
 	else
 		videobuf_queue_sg_init(q, &omap1_videobuf_ops,
 				icd->dev.parent, &pcdev->lock,
 				V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_NONE,
-				sizeof(struct omap1_cam_buf), icd);
+				sizeof(struct omap1_cam_buf), icd, NULL);
 
 	/* use videobuf mode (auto)selected with the module parameter */
 	pcdev->vb_mode = sg_mode ? OMAP1_CAM_DMA_SG : OMAP1_CAM_DMA_CONTIG;
@@ -1386,7 +1386,7 @@ static void omap1_cam_init_videobuf(struct videobuf_queue *q,
 	}
 }
 
-static int omap1_cam_reqbufs(struct soc_camera_file *icf,
+static int omap1_cam_reqbufs(struct soc_camera_device *icd,
 			      struct v4l2_requestbuffers *p)
 {
 	int i;
@@ -1398,7 +1398,7 @@ static int omap1_cam_reqbufs(struct soc_camera_file *icf,
 	 * it hadn't triggered
 	 */
 	for (i = 0; i < p->count; i++) {
-		struct omap1_cam_buf *buf = container_of(icf->vb_vidq.bufs[i],
+		struct omap1_cam_buf *buf = container_of(icd->vb_vidq.bufs[i],
 						      struct omap1_cam_buf, vb);
 		buf->inwork = 0;
 		INIT_LIST_HEAD(&buf->vb.queue);
@@ -1485,10 +1485,10 @@ static int omap1_cam_set_bus_param(struct soc_camera_device *icd,
 
 static unsigned int omap1_cam_poll(struct file *file, poll_table *pt)
 {
-	struct soc_camera_file *icf = file->private_data;
+	struct soc_camera_device *icd = file->private_data;
 	struct omap1_cam_buf *buf;
 
-	buf = list_entry(icf->vb_vidq.stream.next, struct omap1_cam_buf,
+	buf = list_entry(icd->vb_vidq.stream.next, struct omap1_cam_buf,
 			 vb.stream);
 
 	poll_wait(file, &buf->vb.done, pt);
diff --git a/drivers/media/video/ov6650.c b/drivers/media/video/ov6650.c
index b7cfeab..cf93de9 100644
--- a/drivers/media/video/ov6650.c
+++ b/drivers/media/video/ov6650.c
@@ -754,7 +754,7 @@ static int ov6650_g_fmt(struct v4l2_subdev *sd,
 
 static bool is_unscaled_ok(int width, int height, struct v4l2_rect *rect)
 {
-	return (width > rect->width >> 1 || height > rect->height >> 1);
+	return width > rect->width >> 1 || height > rect->height >> 1;
 }
 
 static u8 to_clkrc(struct v4l2_fract *timeperframe,
@@ -840,8 +840,6 @@ static int ov6650_s_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf)
 		coma_mask |= COMA_BW | COMA_BYTE_SWAP | COMA_WORD_SWAP;
 		coma_set |= COMA_RAW_RGB | COMA_RGB;
 		break;
-	case 0:
-		break;
 	default:
 		dev_err(&client->dev, "Pixel format not handled: 0x%x\n", code);
 		return -EINVAL;
@@ -1176,7 +1174,6 @@ static int ov6650_probe(struct i2c_client *client,
 
 	if (ret) {
 		icd->ops = NULL;
-		i2c_set_clientdata(client, NULL);
 		kfree(priv);
 	}
 
@@ -1187,7 +1184,6 @@ static int ov6650_remove(struct i2c_client *client)
 {
 	struct ov6650 *priv = to_ov6650(client);
 
-	i2c_set_clientdata(client, NULL);
 	kfree(priv);
 	return 0;
 }
diff --git a/drivers/media/video/pms.c b/drivers/media/video/pms.c
index 7129b50..7551907 100644
--- a/drivers/media/video/pms.c
+++ b/drivers/media/video/pms.c
@@ -932,7 +932,7 @@ static ssize_t pms_read(struct file *file, char __user *buf,
 
 static const struct v4l2_file_operations pms_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 	.read           = pms_read,
 };
 
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
index bef2027..66ad516 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
@@ -2088,16 +2088,14 @@ static int pvr2_hdw_load_subdev(struct pvr2_hdw *hdw,
 			   " Setting up with specified i2c address 0x%x",
 			   mid, i2caddr[0]);
 		sd = v4l2_i2c_new_subdev(&hdw->v4l2_dev, &hdw->i2c_adap,
-					 NULL, fname,
-					 i2caddr[0], NULL);
+					 fname, i2caddr[0], NULL);
 	} else {
 		pvr2_trace(PVR2_TRACE_INIT,
 			   "Module ID %u:"
 			   " Setting up with address probe list",
 			   mid);
 		sd = v4l2_i2c_new_subdev(&hdw->v4l2_dev, &hdw->i2c_adap,
-						NULL, fname,
-						0, i2caddr);
+					 fname, 0, i2caddr);
 	}
 
 	if (!sd) {
diff --git a/drivers/media/video/pwc/pwc-if.c b/drivers/media/video/pwc/pwc-if.c
index e62beb4..f3dc89d 100644
--- a/drivers/media/video/pwc/pwc-if.c
+++ b/drivers/media/video/pwc/pwc-if.c
@@ -62,7 +62,6 @@
 #include <linux/module.h>
 #include <linux/poll.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #ifdef CONFIG_USB_PWC_INPUT_EVDEV
 #include <linux/usb/input.h>
 #endif
diff --git a/drivers/media/video/s2255drv.c b/drivers/media/video/s2255drv.c
index f5a46c4..a845753 100644
--- a/drivers/media/video/s2255drv.c
+++ b/drivers/media/video/s2255drv.c
@@ -49,7 +49,6 @@
 #include <linux/videodev2.h>
 #include <linux/version.h>
 #include <linux/mm.h>
-#include <linux/smp_lock.h>
 #include <media/videobuf-vmalloc.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-device.h>
diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c
index e8f13d3..1b93207 100644
--- a/drivers/media/video/s5p-fimc/fimc-capture.c
+++ b/drivers/media/video/s5p-fimc/fimc-capture.c
@@ -44,7 +44,7 @@ static struct v4l2_subdev *fimc_subdev_register(struct fimc_dev *fimc,
 		return ERR_PTR(-ENOMEM);
 
 	sd = v4l2_i2c_new_subdev_board(&vid_cap->v4l2_dev, i2c_adap,
-				       MODULE_NAME, isp_info->board_info, NULL);
+				       isp_info->board_info, NULL);
 	if (!sd) {
 		v4l2_err(&vid_cap->v4l2_dev, "failed to acquire subdev\n");
 		return NULL;
diff --git a/drivers/media/video/saa7134/saa7134-cards.c b/drivers/media/video/saa7134/saa7134-cards.c
index 10a6cbf..1d4d0a4 100644
--- a/drivers/media/video/saa7134/saa7134-cards.c
+++ b/drivers/media/video/saa7134/saa7134-cards.c
@@ -6661,6 +6661,18 @@ struct pci_device_id saa7134_pci_tbl[] = {
 		.subdevice    = 0x2804,
 		.driver_data  = SAA7134_BOARD_TECHNOTREND_BUDGET_T3000,
 	}, {
+		.vendor       = PCI_VENDOR_ID_PHILIPS,
+		.device       = PCI_DEVICE_ID_PHILIPS_SAA7133,
+		.subvendor    = 0x5ace, /* Beholder Intl. Ltd. */
+		.subdevice    = 0x7190,
+		.driver_data  = SAA7134_BOARD_BEHOLD_H7,
+	}, {
+		.vendor       = PCI_VENDOR_ID_PHILIPS,
+		.device       = PCI_DEVICE_ID_PHILIPS_SAA7133,
+		.subvendor    = 0x5ace, /* Beholder Intl. Ltd. */
+		.subdevice    = 0x7090,
+		.driver_data  = SAA7134_BOARD_BEHOLD_A7,
+	}, {
 		/* --- boards without eeprom + subsystem ID --- */
 		.vendor       = PCI_VENDOR_ID_PHILIPS,
 		.device       = PCI_DEVICE_ID_PHILIPS_SAA7134,
@@ -6698,18 +6710,6 @@ struct pci_device_id saa7134_pci_tbl[] = {
 		.subvendor    = PCI_ANY_ID,
 		.subdevice    = PCI_ANY_ID,
 		.driver_data  = SAA7134_BOARD_UNKNOWN,
-	}, {
-		.vendor       = PCI_VENDOR_ID_PHILIPS,
-		.device       = PCI_DEVICE_ID_PHILIPS_SAA7133,
-		.subvendor    = 0x5ace, /* Beholder Intl. Ltd. */
-		.subdevice    = 0x7190,
-		.driver_data  = SAA7134_BOARD_BEHOLD_H7,
-	}, {
-		.vendor       = PCI_VENDOR_ID_PHILIPS,
-		.device       = PCI_DEVICE_ID_PHILIPS_SAA7133,
-		.subvendor    = 0x5ace, /* Beholder Intl. Ltd. */
-		.subdevice    = 0x7090,
-		.driver_data  = SAA7134_BOARD_BEHOLD_A7,
 	},{
 		/* --- end of list --- */
 	}
@@ -7551,22 +7551,22 @@ int saa7134_board_init2(struct saa7134_dev *dev)
 		   so we do not need to probe for a radio tuner device. */
 		if (dev->radio_type != UNSET)
 			v4l2_i2c_new_subdev(&dev->v4l2_dev,
-				&dev->i2c_adap, NULL, "tuner",
+				&dev->i2c_adap, "tuner",
 				dev->radio_addr, NULL);
 		if (has_demod)
 			v4l2_i2c_new_subdev(&dev->v4l2_dev,
-				&dev->i2c_adap, NULL, "tuner",
+				&dev->i2c_adap, "tuner",
 				0, v4l2_i2c_tuner_addrs(ADDRS_DEMOD));
 		if (dev->tuner_addr == ADDR_UNSET) {
 			enum v4l2_i2c_tuner_type type =
 				has_demod ? ADDRS_TV_WITH_DEMOD : ADDRS_TV;
 
 			v4l2_i2c_new_subdev(&dev->v4l2_dev,
-				&dev->i2c_adap, NULL, "tuner",
+				&dev->i2c_adap, "tuner",
 				0, v4l2_i2c_tuner_addrs(type));
 		} else {
 			v4l2_i2c_new_subdev(&dev->v4l2_dev,
-				&dev->i2c_adap, NULL, "tuner",
+				&dev->i2c_adap, "tuner",
 				dev->tuner_addr, NULL);
 		}
 	}
diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c
index 764d7d2..756a278 100644
--- a/drivers/media/video/saa7134/saa7134-core.c
+++ b/drivers/media/video/saa7134/saa7134-core.c
@@ -991,7 +991,7 @@ static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
 	if (card_is_empress(dev)) {
 		struct v4l2_subdev *sd =
 			v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
-				NULL, "saa6752hs",
+				"saa6752hs",
 				saa7134_boards[dev->board].empress_addr, NULL);
 
 		if (sd)
@@ -1002,7 +1002,7 @@ static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
 		struct v4l2_subdev *sd;
 
 		sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
-				&dev->i2c_adap, NULL, "saa6588",
+				&dev->i2c_adap, "saa6588",
 				0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
 		if (sd) {
 			printk(KERN_INFO "%s: found RDS decoder\n", dev->name);
diff --git a/drivers/media/video/saa7134/saa7134-empress.c b/drivers/media/video/saa7134/saa7134-empress.c
index 1467a30..b890aaf 100644
--- a/drivers/media/video/saa7134/saa7134-empress.c
+++ b/drivers/media/video/saa7134/saa7134-empress.c
@@ -21,7 +21,6 @@
 #include <linux/list.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
-#include <linux/smp_lock.h>
 #include <linux/delay.h>
 
 #include "saa7134-reg.h"
diff --git a/drivers/media/video/saa7164/saa7164.h b/drivers/media/video/saa7164/saa7164.h
index 1d9c5cb..041ae8e 100644
--- a/drivers/media/video/saa7164/saa7164.h
+++ b/drivers/media/video/saa7164/saa7164.h
@@ -58,7 +58,6 @@
 #include <media/tveeprom.h>
 #include <media/videobuf-dma-sg.h>
 #include <media/videobuf-dvb.h>
-#include <linux/smp_lock.h>
 #include <dvb_demux.h>
 #include <dvb_frontend.h>
 #include <dvb_net.h>
diff --git a/drivers/media/video/se401.c b/drivers/media/video/se401.c
index 41d0166..41360d7 100644
--- a/drivers/media/video/se401.c
+++ b/drivers/media/video/se401.c
@@ -31,7 +31,6 @@ static const char version[] = "0.24";
 #include <linux/init.h>
 #include <linux/vmalloc.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/pagemap.h>
 #include <linux/usb.h>
 #include "se401.h"
@@ -951,9 +950,9 @@ static int se401_open(struct file *file)
 	struct usb_se401 *se401 = (struct usb_se401 *)dev;
 	int err = 0;
 
-	lock_kernel();
+	mutex_lock(&se401->lock);
 	if (se401->user) {
-		unlock_kernel();
+		mutex_unlock(&se401->lock);
 		return -EBUSY;
 	}
 	se401->fbuf = rvmalloc(se401->maxframesize * SE401_NUMFRAMES);
@@ -962,7 +961,7 @@ static int se401_open(struct file *file)
 	else
 		err = -ENOMEM;
 	se401->user = !err;
-	unlock_kernel();
+	mutex_unlock(&se401->lock);
 
 	return err;
 }
diff --git a/drivers/media/video/sh_vou.c b/drivers/media/video/sh_vou.c
index 0f49061..07cf0c6 100644
--- a/drivers/media/video/sh_vou.c
+++ b/drivers/media/video/sh_vou.c
@@ -75,6 +75,7 @@ struct sh_vou_device {
 	int pix_idx;
 	struct videobuf_buffer *active;
 	enum sh_vou_status status;
+	struct mutex fop_lock;
 };
 
 struct sh_vou_file {
@@ -235,7 +236,7 @@ static void free_buffer(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 	vb->state = VIDEOBUF_NEEDS_INIT;
 }
 
-/* Locking: caller holds vq->vb_lock mutex */
+/* Locking: caller holds fop_lock mutex */
 static int sh_vou_buf_setup(struct videobuf_queue *vq, unsigned int *count,
 			    unsigned int *size)
 {
@@ -257,7 +258,7 @@ static int sh_vou_buf_setup(struct videobuf_queue *vq, unsigned int *count,
 	return 0;
 }
 
-/* Locking: caller holds vq->vb_lock mutex */
+/* Locking: caller holds fop_lock mutex */
 static int sh_vou_buf_prepare(struct videobuf_queue *vq,
 			      struct videobuf_buffer *vb,
 			      enum v4l2_field field)
@@ -306,7 +307,7 @@ static int sh_vou_buf_prepare(struct videobuf_queue *vq,
 	return 0;
 }
 
-/* Locking: caller holds vq->vb_lock mutex and vq->irqlock spinlock */
+/* Locking: caller holds fop_lock mutex and vq->irqlock spinlock */
 static void sh_vou_buf_queue(struct videobuf_queue *vq,
 			     struct videobuf_buffer *vb)
 {
@@ -1190,7 +1191,7 @@ static int sh_vou_open(struct file *file)
 				       V4L2_BUF_TYPE_VIDEO_OUTPUT,
 				       V4L2_FIELD_NONE,
 				       sizeof(struct videobuf_buffer), vdev,
-				       NULL);
+				       &vou_dev->fop_lock);
 
 	return 0;
 }
@@ -1292,7 +1293,7 @@ static const struct v4l2_file_operations sh_vou_fops = {
 	.owner		= THIS_MODULE,
 	.open		= sh_vou_open,
 	.release	= sh_vou_release,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 	.mmap		= sh_vou_mmap,
 	.poll		= sh_vou_poll,
 };
@@ -1331,6 +1332,7 @@ static int __devinit sh_vou_probe(struct platform_device *pdev)
 
 	INIT_LIST_HEAD(&vou_dev->queue);
 	spin_lock_init(&vou_dev->lock);
+	mutex_init(&vou_dev->fop_lock);
 	atomic_set(&vou_dev->use_count, 0);
 	vou_dev->pdata = vou_pdata;
 	vou_dev->status = SH_VOU_IDLE;
@@ -1388,6 +1390,7 @@ static int __devinit sh_vou_probe(struct platform_device *pdev)
 		vdev->tvnorms |= V4L2_STD_PAL;
 	vdev->v4l2_dev = &vou_dev->v4l2_dev;
 	vdev->release = video_device_release;
+	vdev->lock = &vou_dev->fop_lock;
 
 	vou_dev->vdev = vdev;
 	video_set_drvdata(vdev, vou_dev);
@@ -1406,7 +1409,7 @@ static int __devinit sh_vou_probe(struct platform_device *pdev)
 		goto ereset;
 
 	subdev = v4l2_i2c_new_subdev_board(&vou_dev->v4l2_dev, i2c_adap,
-			NULL, vou_pdata->board_info, NULL);
+			vou_pdata->board_info, NULL);
 	if (!subdev) {
 		ret = -ENOMEM;
 		goto ei2cnd;
diff --git a/drivers/media/video/sn9c102/sn9c102_core.c b/drivers/media/video/sn9c102/sn9c102_core.c
index 28e19da..f49fbfb 100644
--- a/drivers/media/video/sn9c102/sn9c102_core.c
+++ b/drivers/media/video/sn9c102/sn9c102_core.c
@@ -3238,7 +3238,7 @@ static const struct v4l2_file_operations sn9c102_fops = {
 	.owner = THIS_MODULE,
 	.open = sn9c102_open,
 	.release = sn9c102_release,
-	.ioctl = sn9c102_ioctl,
+	.unlocked_ioctl = sn9c102_ioctl,
 	.read = sn9c102_read,
 	.poll = sn9c102_poll,
 	.mmap = sn9c102_mmap,
diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c
index 43848a7..335120c 100644
--- a/drivers/media/video/soc_camera.c
+++ b/drivers/media/video/soc_camera.c
@@ -896,7 +896,7 @@ static int soc_camera_init_i2c(struct soc_camera_device *icd,
 	icl->board_info->platform_data = icd;
 
 	subdev = v4l2_i2c_new_subdev_board(&ici->v4l2_dev, adap,
-				NULL, icl->board_info, NULL);
+				icl->board_info, NULL);
 	if (!subdev)
 		goto ei2cnd;
 
diff --git a/drivers/media/video/stk-webcam.c b/drivers/media/video/stk-webcam.c
index f07a0f6..b5afe5f 100644
--- a/drivers/media/video/stk-webcam.c
+++ b/drivers/media/video/stk-webcam.c
@@ -27,7 +27,6 @@
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 
 #include <linux/usb.h>
 #include <linux/mm.h>
@@ -673,14 +672,11 @@ static int v4l_stk_open(struct file *fp)
 	vdev = video_devdata(fp);
 	dev = vdev_to_camera(vdev);
 
-	lock_kernel();
 	if (dev == NULL || !is_present(dev)) {
-		unlock_kernel();
 		return -ENXIO;
 	}
 	fp->private_data = dev;
 	usb_autopm_get_interface(dev->interface);
-	unlock_kernel();
 
 	return 0;
 }
diff --git a/drivers/media/video/tlg2300/pd-main.c b/drivers/media/video/tlg2300/pd-main.c
index 4555f4a..c91424c 100644
--- a/drivers/media/video/tlg2300/pd-main.c
+++ b/drivers/media/video/tlg2300/pd-main.c
@@ -36,7 +36,6 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/firmware.h>
-#include <linux/smp_lock.h>
 
 #include "vendorcmds.h"
 #include "pd-common.h"
@@ -485,15 +484,11 @@ static void poseidon_disconnect(struct usb_interface *interface)
 	/*unregister v4l2 device */
 	v4l2_device_unregister(&pd->v4l2_dev);
 
-	lock_kernel();
-	{
-		pd_dvb_usb_device_exit(pd);
-		poseidon_fm_exit(pd);
+	pd_dvb_usb_device_exit(pd);
+	poseidon_fm_exit(pd);
 
-		poseidon_audio_free(pd);
-		pd_video_exit(pd);
-	}
-	unlock_kernel();
+	poseidon_audio_free(pd);
+	pd_video_exit(pd);
 
 	usb_set_intfdata(interface, NULL);
 	kref_put(&pd->kref, poseidon_delete);
diff --git a/drivers/media/video/usbvideo/vicam.c b/drivers/media/video/usbvideo/vicam.c
index 5d6fd01..dc17cce 100644
--- a/drivers/media/video/usbvideo/vicam.c
+++ b/drivers/media/video/usbvideo/vicam.c
@@ -43,7 +43,6 @@
 #include <linux/vmalloc.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/mutex.h>
 #include <linux/firmware.h>
 #include <linux/ihex.h>
@@ -483,29 +482,28 @@ vicam_open(struct file *file)
 		return -EINVAL;
 	}
 
-	/* the videodev_lock held above us protects us from
-	 * simultaneous opens...for now. we probably shouldn't
-	 * rely on this fact forever.
+	/* cam_lock/open_count protects us from simultaneous opens
+	 * ... for now. we probably shouldn't rely on this fact forever.
 	 */
 
-	lock_kernel();
+	mutex_lock(&cam->cam_lock);
 	if (cam->open_count > 0) {
 		printk(KERN_INFO
 		       "vicam_open called on already opened camera");
-		unlock_kernel();
+		mutex_unlock(&cam->cam_lock);
 		return -EBUSY;
 	}
 
 	cam->raw_image = kmalloc(VICAM_MAX_READ_SIZE, GFP_KERNEL);
 	if (!cam->raw_image) {
-		unlock_kernel();
+		mutex_unlock(&cam->cam_lock);
 		return -ENOMEM;
 	}
 
 	cam->framebuf = rvmalloc(VICAM_MAX_FRAME_SIZE * VICAM_FRAMES);
 	if (!cam->framebuf) {
 		kfree(cam->raw_image);
-		unlock_kernel();
+		mutex_unlock(&cam->cam_lock);
 		return -ENOMEM;
 	}
 
@@ -513,10 +511,17 @@ vicam_open(struct file *file)
 	if (!cam->cntrlbuf) {
 		kfree(cam->raw_image);
 		rvfree(cam->framebuf, VICAM_MAX_FRAME_SIZE * VICAM_FRAMES);
-		unlock_kernel();
+		mutex_unlock(&cam->cam_lock);
 		return -ENOMEM;
 	}
 
+	cam->needsDummyRead = 1;
+	cam->open_count++;
+
+	file->private_data = cam;
+	mutex_unlock(&cam->cam_lock);
+
+
 	// First upload firmware, then turn the camera on
 
 	if (!cam->is_initialized) {
@@ -527,12 +532,6 @@ vicam_open(struct file *file)
 
 	set_camera_power(cam, 1);
 
-	cam->needsDummyRead = 1;
-	cam->open_count++;
-
-	file->private_data = cam;
-	unlock_kernel();
-
 	return 0;
 }
 
diff --git a/drivers/media/video/usbvision/usbvision-i2c.c b/drivers/media/video/usbvision/usbvision-i2c.c
index e3bbae2..81dd53b 100644
--- a/drivers/media/video/usbvision/usbvision-i2c.c
+++ b/drivers/media/video/usbvision/usbvision-i2c.c
@@ -251,7 +251,7 @@ int usbvision_i2c_register(struct usb_usbvision *usbvision)
 		   hit-and-miss. */
 		mdelay(10);
 		v4l2_i2c_new_subdev(&usbvision->v4l2_dev,
-				&usbvision->i2c_adap, NULL,
+				&usbvision->i2c_adap,
 				"saa7115_auto", 0, saa711x_addrs);
 		break;
 	}
@@ -261,14 +261,14 @@ int usbvision_i2c_register(struct usb_usbvision *usbvision)
 		struct tuner_setup tun_setup;
 
 		sd = v4l2_i2c_new_subdev(&usbvision->v4l2_dev,
-				&usbvision->i2c_adap, NULL,
+				&usbvision->i2c_adap,
 				"tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_DEMOD));
 		/* depending on whether we found a demod or not, select
 		   the tuner type. */
 		type = sd ? ADDRS_TV_WITH_DEMOD : ADDRS_TV;
 
 		sd = v4l2_i2c_new_subdev(&usbvision->v4l2_dev,
-				&usbvision->i2c_adap, NULL,
+				&usbvision->i2c_adap,
 				"tuner", 0, v4l2_i2c_tuner_addrs(type));
 
 		if (sd == NULL)
diff --git a/drivers/media/video/usbvision/usbvision-video.c b/drivers/media/video/usbvision/usbvision-video.c
index db6b828..011c0c3 100644
--- a/drivers/media/video/usbvision/usbvision-video.c
+++ b/drivers/media/video/usbvision/usbvision-video.c
@@ -50,7 +50,6 @@
 #include <linux/list.h>
 #include <linux/timer.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/mm.h>
 #include <linux/highmem.h>
 #include <linux/vmalloc.h>
diff --git a/drivers/media/video/uvc/uvc_ctrl.c b/drivers/media/video/uvc/uvc_ctrl.c
index f169f77..59f8a9a 100644
--- a/drivers/media/video/uvc/uvc_ctrl.c
+++ b/drivers/media/video/uvc/uvc_ctrl.c
@@ -785,7 +785,7 @@ static void __uvc_find_control(struct uvc_entity *entity, __u32 v4l2_id,
 	}
 }
 
-struct uvc_control *uvc_find_control(struct uvc_video_chain *chain,
+static struct uvc_control *uvc_find_control(struct uvc_video_chain *chain,
 	__u32 v4l2_id, struct uvc_control_mapping **mapping)
 {
 	struct uvc_control *ctrl = NULL;
@@ -944,6 +944,52 @@ done:
 	return ret;
 }
 
+/*
+ * Mapping V4L2 controls to UVC controls can be straighforward if done well.
+ * Most of the UVC controls exist in V4L2, and can be mapped directly. Some
+ * must be grouped (for instance the Red Balance, Blue Balance and Do White
+ * Balance V4L2 controls use the White Balance Component UVC control) or
+ * otherwise translated. The approach we take here is to use a translation
+ * table for the controls that can be mapped directly, and handle the others
+ * manually.
+ */
+int uvc_query_v4l2_menu(struct uvc_video_chain *chain,
+	struct v4l2_querymenu *query_menu)
+{
+	struct uvc_menu_info *menu_info;
+	struct uvc_control_mapping *mapping;
+	struct uvc_control *ctrl;
+	u32 index = query_menu->index;
+	u32 id = query_menu->id;
+	int ret;
+
+	memset(query_menu, 0, sizeof(*query_menu));
+	query_menu->id = id;
+	query_menu->index = index;
+
+	ret = mutex_lock_interruptible(&chain->ctrl_mutex);
+	if (ret < 0)
+		return -ERESTARTSYS;
+
+	ctrl = uvc_find_control(chain, query_menu->id, &mapping);
+	if (ctrl == NULL || mapping->v4l2_type != V4L2_CTRL_TYPE_MENU) {
+		ret = -EINVAL;
+		goto done;
+	}
+
+	if (query_menu->index >= mapping->menu_count) {
+		ret = -EINVAL;
+		goto done;
+	}
+
+	menu_info = &mapping->menu_info[query_menu->index];
+	strlcpy(query_menu->name, menu_info->name, sizeof query_menu->name);
+
+done:
+	mutex_unlock(&chain->ctrl_mutex);
+	return ret;
+}
+
 
 /* --------------------------------------------------------------------------
  * Control transactions
diff --git a/drivers/media/video/uvc/uvc_queue.c b/drivers/media/video/uvc/uvc_queue.c
index ed6d544..f14581b 100644
--- a/drivers/media/video/uvc/uvc_queue.c
+++ b/drivers/media/video/uvc/uvc_queue.c
@@ -90,6 +90,39 @@ void uvc_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type,
 }
 
 /*
+ * Free the video buffers.
+ *
+ * This function must be called with the queue lock held.
+ */
+static int __uvc_free_buffers(struct uvc_video_queue *queue)
+{
+	unsigned int i;
+
+	for (i = 0; i < queue->count; ++i) {
+		if (queue->buffer[i].vma_use_count != 0)
+			return -EBUSY;
+	}
+
+	if (queue->count) {
+		vfree(queue->mem);
+		queue->count = 0;
+	}
+
+	return 0;
+}
+
+int uvc_free_buffers(struct uvc_video_queue *queue)
+{
+	int ret;
+
+	mutex_lock(&queue->mutex);
+	ret = __uvc_free_buffers(queue);
+	mutex_unlock(&queue->mutex);
+
+	return ret;
+}
+
+/*
  * Allocate the video buffers.
  *
  * Pages are reserved to make sure they will not be swapped, as they will be
@@ -110,7 +143,7 @@ int uvc_alloc_buffers(struct uvc_video_queue *queue, unsigned int nbuffers,
 
 	mutex_lock(&queue->mutex);
 
-	if ((ret = uvc_free_buffers(queue)) < 0)
+	if ((ret = __uvc_free_buffers(queue)) < 0)
 		goto done;
 
 	/* Bail out if no buffers should be allocated. */
@@ -152,28 +185,6 @@ done:
 }
 
 /*
- * Free the video buffers.
- *
- * This function must be called with the queue lock held.
- */
-int uvc_free_buffers(struct uvc_video_queue *queue)
-{
-	unsigned int i;
-
-	for (i = 0; i < queue->count; ++i) {
-		if (queue->buffer[i].vma_use_count != 0)
-			return -EBUSY;
-	}
-
-	if (queue->count) {
-		vfree(queue->mem);
-		queue->count = 0;
-	}
-
-	return 0;
-}
-
-/*
  * Check if buffers have been allocated.
  */
 int uvc_queue_allocated(struct uvc_video_queue *queue)
@@ -369,6 +380,82 @@ done:
 }
 
 /*
+ * VMA operations.
+ */
+static void uvc_vm_open(struct vm_area_struct *vma)
+{
+	struct uvc_buffer *buffer = vma->vm_private_data;
+	buffer->vma_use_count++;
+}
+
+static void uvc_vm_close(struct vm_area_struct *vma)
+{
+	struct uvc_buffer *buffer = vma->vm_private_data;
+	buffer->vma_use_count--;
+}
+
+static const struct vm_operations_struct uvc_vm_ops = {
+	.open		= uvc_vm_open,
+	.close		= uvc_vm_close,
+};
+
+/*
+ * Memory-map a video buffer.
+ *
+ * This function implements video buffers memory mapping and is intended to be
+ * used by the device mmap handler.
+ */
+int uvc_queue_mmap(struct uvc_video_queue *queue, struct vm_area_struct *vma)
+{
+	struct uvc_buffer *uninitialized_var(buffer);
+	struct page *page;
+	unsigned long addr, start, size;
+	unsigned int i;
+	int ret = 0;
+
+	start = vma->vm_start;
+	size = vma->vm_end - vma->vm_start;
+
+	mutex_lock(&queue->mutex);
+
+	for (i = 0; i < queue->count; ++i) {
+		buffer = &queue->buffer[i];
+		if ((buffer->buf.m.offset >> PAGE_SHIFT) == vma->vm_pgoff)
+			break;
+	}
+
+	if (i == queue->count || size != queue->buf_size) {
+		ret = -EINVAL;
+		goto done;
+	}
+
+	/*
+	 * VM_IO marks the area as being an mmaped region for I/O to a
+	 * device. It also prevents the region from being core dumped.
+	 */
+	vma->vm_flags |= VM_IO;
+
+	addr = (unsigned long)queue->mem + buffer->buf.m.offset;
+	while (size > 0) {
+		page = vmalloc_to_page((void *)addr);
+		if ((ret = vm_insert_page(vma, start, page)) < 0)
+			goto done;
+
+		start += PAGE_SIZE;
+		addr += PAGE_SIZE;
+		size -= PAGE_SIZE;
+	}
+
+	vma->vm_ops = &uvc_vm_ops;
+	vma->vm_private_data = buffer;
+	uvc_vm_open(vma);
+
+done:
+	mutex_unlock(&queue->mutex);
+	return ret;
+}
+
+/*
  * Poll the video queue.
  *
  * This function implements video queue polling and is intended to be used by
diff --git a/drivers/media/video/uvc/uvc_v4l2.c b/drivers/media/video/uvc/uvc_v4l2.c
index 6d15de9..8cf61e8 100644
--- a/drivers/media/video/uvc/uvc_v4l2.c
+++ b/drivers/media/video/uvc/uvc_v4l2.c
@@ -101,40 +101,6 @@ done:
  */
 
 /*
- * Mapping V4L2 controls to UVC controls can be straighforward if done well.
- * Most of the UVC controls exist in V4L2, and can be mapped directly. Some
- * must be grouped (for instance the Red Balance, Blue Balance and Do White
- * Balance V4L2 controls use the White Balance Component UVC control) or
- * otherwise translated. The approach we take here is to use a translation
- * table for the controls that can be mapped directly, and handle the others
- * manually.
- */
-static int uvc_v4l2_query_menu(struct uvc_video_chain *chain,
-	struct v4l2_querymenu *query_menu)
-{
-	struct uvc_menu_info *menu_info;
-	struct uvc_control_mapping *mapping;
-	struct uvc_control *ctrl;
-	u32 index = query_menu->index;
-	u32 id = query_menu->id;
-
-	ctrl = uvc_find_control(chain, query_menu->id, &mapping);
-	if (ctrl == NULL || mapping->v4l2_type != V4L2_CTRL_TYPE_MENU)
-		return -EINVAL;
-
-	if (query_menu->index >= mapping->menu_count)
-		return -EINVAL;
-
-	memset(query_menu, 0, sizeof(*query_menu));
-	query_menu->id = id;
-	query_menu->index = index;
-
-	menu_info = &mapping->menu_info[query_menu->index];
-	strlcpy(query_menu->name, menu_info->name, sizeof query_menu->name);
-	return 0;
-}
-
-/*
  * Find the frame interval closest to the requested frame interval for the
  * given frame format and size. This should be done by the device as part of
  * the Video Probe and Commit negotiation, but some hardware don't implement
@@ -260,12 +226,14 @@ static int uvc_v4l2_try_format(struct uvc_streaming *stream,
 	 * developers test their webcams with the Linux driver as well as with
 	 * the Windows driver).
 	 */
+	mutex_lock(&stream->mutex);
 	if (stream->dev->quirks & UVC_QUIRK_PROBE_EXTRAFIELDS)
 		probe->dwMaxVideoFrameSize =
 			stream->ctrl.dwMaxVideoFrameSize;
 
 	/* Probe the device. */
 	ret = uvc_probe_video(stream, probe);
+	mutex_unlock(&stream->mutex);
 	if (ret < 0)
 		goto done;
 
@@ -289,14 +257,21 @@ done:
 static int uvc_v4l2_get_format(struct uvc_streaming *stream,
 	struct v4l2_format *fmt)
 {
-	struct uvc_format *format = stream->cur_format;
-	struct uvc_frame *frame = stream->cur_frame;
+	struct uvc_format *format;
+	struct uvc_frame *frame;
+	int ret = 0;
 
 	if (fmt->type != stream->type)
 		return -EINVAL;
 
-	if (format == NULL || frame == NULL)
-		return -EINVAL;
+	mutex_lock(&stream->mutex);
+	format = stream->cur_format;
+	frame = stream->cur_frame;
+
+	if (format == NULL || frame == NULL) {
+		ret = -EINVAL;
+		goto done;
+	}
 
 	fmt->fmt.pix.pixelformat = format->fcc;
 	fmt->fmt.pix.width = frame->wWidth;
@@ -307,7 +282,9 @@ static int uvc_v4l2_get_format(struct uvc_streaming *stream,
 	fmt->fmt.pix.colorspace = format->colorspace;
 	fmt->fmt.pix.priv = 0;
 
-	return 0;
+done:
+	mutex_unlock(&stream->mutex);
+	return ret;
 }
 
 static int uvc_v4l2_set_format(struct uvc_streaming *stream,
@@ -321,18 +298,24 @@ static int uvc_v4l2_set_format(struct uvc_streaming *stream,
 	if (fmt->type != stream->type)
 		return -EINVAL;
 
-	if (uvc_queue_allocated(&stream->queue))
-		return -EBUSY;
-
 	ret = uvc_v4l2_try_format(stream, fmt, &probe, &format, &frame);
 	if (ret < 0)
 		return ret;
 
+	mutex_lock(&stream->mutex);
+
+	if (uvc_queue_allocated(&stream->queue)) {
+		ret = -EBUSY;
+		goto done;
+	}
+
 	memcpy(&stream->ctrl, &probe, sizeof probe);
 	stream->cur_format = format;
 	stream->cur_frame = frame;
 
-	return 0;
+done:
+	mutex_unlock(&stream->mutex);
+	return ret;
 }
 
 static int uvc_v4l2_get_streamparm(struct uvc_streaming *stream,
@@ -343,7 +326,10 @@ static int uvc_v4l2_get_streamparm(struct uvc_streaming *stream,
 	if (parm->type != stream->type)
 		return -EINVAL;
 
+	mutex_lock(&stream->mutex);
 	numerator = stream->ctrl.dwFrameInterval;
+	mutex_unlock(&stream->mutex);
+
 	denominator = 10000000;
 	uvc_simplify_fraction(&numerator, &denominator, 8, 333);
 
@@ -370,7 +356,6 @@ static int uvc_v4l2_get_streamparm(struct uvc_streaming *stream,
 static int uvc_v4l2_set_streamparm(struct uvc_streaming *stream,
 		struct v4l2_streamparm *parm)
 {
-	struct uvc_frame *frame = stream->cur_frame;
 	struct uvc_streaming_control probe;
 	struct v4l2_fract timeperframe;
 	uint32_t interval;
@@ -379,28 +364,36 @@ static int uvc_v4l2_set_streamparm(struct uvc_streaming *stream,
 	if (parm->type != stream->type)
 		return -EINVAL;
 
-	if (uvc_queue_streaming(&stream->queue))
-		return -EBUSY;
-
 	if (parm->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 		timeperframe = parm->parm.capture.timeperframe;
 	else
 		timeperframe = parm->parm.output.timeperframe;
 
-	memcpy(&probe, &stream->ctrl, sizeof probe);
 	interval = uvc_fraction_to_interval(timeperframe.numerator,
 		timeperframe.denominator);
-
 	uvc_trace(UVC_TRACE_FORMAT, "Setting frame interval to %u/%u (%u).\n",
 		timeperframe.numerator, timeperframe.denominator, interval);
-	probe.dwFrameInterval = uvc_try_frame_interval(frame, interval);
+
+	mutex_lock(&stream->mutex);
+
+	if (uvc_queue_streaming(&stream->queue)) {
+		mutex_unlock(&stream->mutex);
+		return -EBUSY;
+	}
+
+	memcpy(&probe, &stream->ctrl, sizeof probe);
+	probe.dwFrameInterval =
+		uvc_try_frame_interval(stream->cur_frame, interval);
 
 	/* Probe the device with the new settings. */
 	ret = uvc_probe_video(stream, &probe);
-	if (ret < 0)
+	if (ret < 0) {
+		mutex_unlock(&stream->mutex);
 		return ret;
+	}
 
 	memcpy(&stream->ctrl, &probe, sizeof probe);
+	mutex_unlock(&stream->mutex);
 
 	/* Return the actual frame period. */
 	timeperframe.numerator = probe.dwFrameInterval;
@@ -528,11 +521,9 @@ static int uvc_v4l2_release(struct file *file)
 	if (uvc_has_privileges(handle)) {
 		uvc_video_enable(stream, 0);
 
-		mutex_lock(&stream->queue.mutex);
 		if (uvc_free_buffers(&stream->queue) < 0)
 			uvc_printk(KERN_ERR, "uvc_v4l2_release: Unable to "
 					"free buffers.\n");
-		mutex_unlock(&stream->queue.mutex);
 	}
 
 	/* Release the file handle. */
@@ -624,7 +615,7 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
 	}
 
 	case VIDIOC_QUERYMENU:
-		return uvc_v4l2_query_menu(chain, arg);
+		return uvc_query_v4l2_menu(chain, arg);
 
 	case VIDIOC_G_EXT_CTRLS:
 	{
@@ -905,15 +896,17 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
 	case VIDIOC_CROPCAP:
 	{
 		struct v4l2_cropcap *ccap = arg;
-		struct uvc_frame *frame = stream->cur_frame;
 
 		if (ccap->type != stream->type)
 			return -EINVAL;
 
 		ccap->bounds.left = 0;
 		ccap->bounds.top = 0;
-		ccap->bounds.width = frame->wWidth;
-		ccap->bounds.height = frame->wHeight;
+
+		mutex_lock(&stream->mutex);
+		ccap->bounds.width = stream->cur_frame->wWidth;
+		ccap->bounds.height = stream->cur_frame->wHeight;
+		mutex_unlock(&stream->mutex);
 
 		ccap->defrect = ccap->bounds;
 
@@ -930,8 +923,6 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
 	case VIDIOC_REQBUFS:
 	{
 		struct v4l2_requestbuffers *rb = arg;
-		unsigned int bufsize =
-			stream->ctrl.dwMaxVideoFrameSize;
 
 		if (rb->type != stream->type ||
 		    rb->memory != V4L2_MEMORY_MMAP)
@@ -940,7 +931,10 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
 		if ((ret = uvc_acquire_privileges(handle)) < 0)
 			return ret;
 
-		ret = uvc_alloc_buffers(&stream->queue, rb->count, bufsize);
+		mutex_lock(&stream->mutex);
+		ret = uvc_alloc_buffers(&stream->queue, rb->count,
+					stream->ctrl.dwMaxVideoFrameSize);
+		mutex_unlock(&stream->mutex);
 		if (ret < 0)
 			return ret;
 
@@ -988,7 +982,9 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
 		if (!uvc_has_privileges(handle))
 			return -EBUSY;
 
+		mutex_lock(&stream->mutex);
 		ret = uvc_video_enable(stream, 1);
+		mutex_unlock(&stream->mutex);
 		if (ret < 0)
 			return ret;
 		break;
@@ -1068,79 +1064,14 @@ static ssize_t uvc_v4l2_read(struct file *file, char __user *data,
 	return -EINVAL;
 }
 
-/*
- * VMA operations.
- */
-static void uvc_vm_open(struct vm_area_struct *vma)
-{
-	struct uvc_buffer *buffer = vma->vm_private_data;
-	buffer->vma_use_count++;
-}
-
-static void uvc_vm_close(struct vm_area_struct *vma)
-{
-	struct uvc_buffer *buffer = vma->vm_private_data;
-	buffer->vma_use_count--;
-}
-
-static const struct vm_operations_struct uvc_vm_ops = {
-	.open		= uvc_vm_open,
-	.close		= uvc_vm_close,
-};
-
 static int uvc_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
 {
 	struct uvc_fh *handle = file->private_data;
 	struct uvc_streaming *stream = handle->stream;
-	struct uvc_video_queue *queue = &stream->queue;
-	struct uvc_buffer *uninitialized_var(buffer);
-	struct page *page;
-	unsigned long addr, start, size;
-	unsigned int i;
-	int ret = 0;
 
 	uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_mmap\n");
 
-	start = vma->vm_start;
-	size = vma->vm_end - vma->vm_start;
-
-	mutex_lock(&queue->mutex);
-
-	for (i = 0; i < queue->count; ++i) {
-		buffer = &queue->buffer[i];
-		if ((buffer->buf.m.offset >> PAGE_SHIFT) == vma->vm_pgoff)
-			break;
-	}
-
-	if (i == queue->count || size != queue->buf_size) {
-		ret = -EINVAL;
-		goto done;
-	}
-
-	/*
-	 * VM_IO marks the area as being an mmaped region for I/O to a
-	 * device. It also prevents the region from being core dumped.
-	 */
-	vma->vm_flags |= VM_IO;
-
-	addr = (unsigned long)queue->mem + buffer->buf.m.offset;
-	while (size > 0) {
-		page = vmalloc_to_page((void *)addr);
-		if ((ret = vm_insert_page(vma, start, page)) < 0)
-			goto done;
-
-		start += PAGE_SIZE;
-		addr += PAGE_SIZE;
-		size -= PAGE_SIZE;
-	}
-
-	vma->vm_ops = &uvc_vm_ops;
-	vma->vm_private_data = buffer;
-	uvc_vm_open(vma);
-
-done:
-	mutex_unlock(&queue->mutex);
-	return ret;
+	return uvc_queue_mmap(&stream->queue, vma);
 }
 
 static unsigned int uvc_v4l2_poll(struct file *file, poll_table *wait)
@@ -1157,7 +1088,7 @@ const struct v4l2_file_operations uvc_fops = {
 	.owner		= THIS_MODULE,
 	.open		= uvc_v4l2_open,
 	.release	= uvc_v4l2_release,
-	.ioctl		= uvc_v4l2_ioctl,
+	.unlocked_ioctl	= uvc_v4l2_ioctl,
 	.read		= uvc_v4l2_read,
 	.mmap		= uvc_v4l2_mmap,
 	.poll		= uvc_v4l2_poll,
diff --git a/drivers/media/video/uvc/uvc_video.c b/drivers/media/video/uvc/uvc_video.c
index 5555f01..5673d67 100644
--- a/drivers/media/video/uvc/uvc_video.c
+++ b/drivers/media/video/uvc/uvc_video.c
@@ -293,8 +293,6 @@ int uvc_probe_video(struct uvc_streaming *stream,
 	unsigned int i;
 	int ret;
 
-	mutex_lock(&stream->mutex);
-
 	/* Perform probing. The device should adjust the requested values
 	 * according to its capabilities. However, some devices, namely the
 	 * first generation UVC Logitech webcams, don't implement the Video
@@ -346,7 +344,6 @@ int uvc_probe_video(struct uvc_streaming *stream,
 	}
 
 done:
-	mutex_unlock(&stream->mutex);
 	return ret;
 }
 
diff --git a/drivers/media/video/uvc/uvcvideo.h b/drivers/media/video/uvc/uvcvideo.h
index d97cf6d..45f01e7 100644
--- a/drivers/media/video/uvc/uvcvideo.h
+++ b/drivers/media/video/uvc/uvcvideo.h
@@ -436,7 +436,9 @@ struct uvc_streaming {
 	struct uvc_streaming_control ctrl;
 	struct uvc_format *cur_format;
 	struct uvc_frame *cur_frame;
-
+	/* Protect access to ctrl, cur_format, cur_frame and hardware video
+	 * probe control.
+	 */
 	struct mutex mutex;
 
 	unsigned int frozen : 1;
@@ -574,6 +576,8 @@ extern int uvc_queue_enable(struct uvc_video_queue *queue, int enable);
 extern void uvc_queue_cancel(struct uvc_video_queue *queue, int disconnect);
 extern struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue,
 		struct uvc_buffer *buf);
+extern int uvc_queue_mmap(struct uvc_video_queue *queue,
+		struct vm_area_struct *vma);
 extern unsigned int uvc_queue_poll(struct uvc_video_queue *queue,
 		struct file *file, poll_table *wait);
 extern int uvc_queue_allocated(struct uvc_video_queue *queue);
@@ -606,10 +610,10 @@ extern int uvc_status_suspend(struct uvc_device *dev);
 extern int uvc_status_resume(struct uvc_device *dev);
 
 /* Controls */
-extern struct uvc_control *uvc_find_control(struct uvc_video_chain *chain,
-		__u32 v4l2_id, struct uvc_control_mapping **mapping);
 extern int uvc_query_v4l2_ctrl(struct uvc_video_chain *chain,
 		struct v4l2_queryctrl *v4l2_ctrl);
+extern int uvc_query_v4l2_menu(struct uvc_video_chain *chain,
+		struct v4l2_querymenu *query_menu);
 
 extern int uvc_ctrl_add_mapping(struct uvc_video_chain *chain,
 		const struct uvc_control_mapping *mapping);
diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c
index 9294282..b5eb1f3 100644
--- a/drivers/media/video/v4l2-common.c
+++ b/drivers/media/video/v4l2-common.c
@@ -368,18 +368,15 @@ EXPORT_SYMBOL_GPL(v4l2_i2c_subdev_init);
 
 /* Load an i2c sub-device. */
 struct v4l2_subdev *v4l2_i2c_new_subdev_board(struct v4l2_device *v4l2_dev,
-		struct i2c_adapter *adapter, const char *module_name,
-		struct i2c_board_info *info, const unsigned short *probe_addrs)
+		struct i2c_adapter *adapter, struct i2c_board_info *info,
+		const unsigned short *probe_addrs)
 {
 	struct v4l2_subdev *sd = NULL;
 	struct i2c_client *client;
 
 	BUG_ON(!v4l2_dev);
 
-	if (module_name)
-		request_module(module_name);
-	else
-		request_module(I2C_MODULE_PREFIX "%s", info->type);
+	request_module(I2C_MODULE_PREFIX "%s", info->type);
 
 	/* Create the i2c client */
 	if (info->addr == 0 && probe_addrs)
@@ -432,8 +429,7 @@ error:
 EXPORT_SYMBOL_GPL(v4l2_i2c_new_subdev_board);
 
 struct v4l2_subdev *v4l2_i2c_new_subdev_cfg(struct v4l2_device *v4l2_dev,
-		struct i2c_adapter *adapter,
-		const char *module_name, const char *client_type,
+		struct i2c_adapter *adapter, const char *client_type,
 		int irq, void *platform_data,
 		u8 addr, const unsigned short *probe_addrs)
 {
@@ -447,8 +443,7 @@ struct v4l2_subdev *v4l2_i2c_new_subdev_cfg(struct v4l2_device *v4l2_dev,
 	info.irq = irq;
 	info.platform_data = platform_data;
 
-	return v4l2_i2c_new_subdev_board(v4l2_dev, adapter, module_name,
-			&info, probe_addrs);
+	return v4l2_i2c_new_subdev_board(v4l2_dev, adapter, &info, probe_addrs);
 }
 EXPORT_SYMBOL_GPL(v4l2_i2c_new_subdev_cfg);
 
diff --git a/drivers/media/video/v4l2-compat-ioctl32.c b/drivers/media/video/v4l2-compat-ioctl32.c
index 86294ed3..e30e8df 100644
--- a/drivers/media/video/v4l2-compat-ioctl32.c
+++ b/drivers/media/video/v4l2-compat-ioctl32.c
@@ -18,7 +18,6 @@
 #include <linux/videodev.h>
 #include <linux/videodev2.h>
 #include <linux/module.h>
-#include <linux/smp_lock.h>
 #include <media/v4l2-ioctl.h>
 
 #ifdef CONFIG_COMPAT
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
index 0ca7978..359e232 100644
--- a/drivers/media/video/v4l2-dev.c
+++ b/drivers/media/video/v4l2-dev.c
@@ -25,7 +25,6 @@
 #include <linux/init.h>
 #include <linux/kmod.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <asm/uaccess.h>
 #include <asm/system.h>
 
@@ -187,12 +186,12 @@ static ssize_t v4l2_read(struct file *filp, char __user *buf,
 		size_t sz, loff_t *off)
 {
 	struct video_device *vdev = video_devdata(filp);
-	int ret = -EIO;
+	int ret = -ENODEV;
 
 	if (!vdev->fops->read)
 		return -EINVAL;
-	if (vdev->lock)
-		mutex_lock(vdev->lock);
+	if (vdev->lock && mutex_lock_interruptible(vdev->lock))
+		return -ERESTARTSYS;
 	if (video_is_registered(vdev))
 		ret = vdev->fops->read(filp, buf, sz, off);
 	if (vdev->lock)
@@ -204,12 +203,12 @@ static ssize_t v4l2_write(struct file *filp, const char __user *buf,
 		size_t sz, loff_t *off)
 {
 	struct video_device *vdev = video_devdata(filp);
-	int ret = -EIO;
+	int ret = -ENODEV;
 
 	if (!vdev->fops->write)
 		return -EINVAL;
-	if (vdev->lock)
-		mutex_lock(vdev->lock);
+	if (vdev->lock && mutex_lock_interruptible(vdev->lock))
+		return -ERESTARTSYS;
 	if (video_is_registered(vdev))
 		ret = vdev->fops->write(filp, buf, sz, off);
 	if (vdev->lock)
@@ -220,10 +219,10 @@ static ssize_t v4l2_write(struct file *filp, const char __user *buf,
 static unsigned int v4l2_poll(struct file *filp, struct poll_table_struct *poll)
 {
 	struct video_device *vdev = video_devdata(filp);
-	int ret = DEFAULT_POLLMASK;
+	int ret = POLLERR | POLLHUP;
 
 	if (!vdev->fops->poll)
-		return ret;
+		return DEFAULT_POLLMASK;
 	if (vdev->lock)
 		mutex_lock(vdev->lock);
 	if (video_is_registered(vdev))
@@ -239,18 +238,45 @@ static long v4l2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	int ret = -ENODEV;
 
 	if (vdev->fops->unlocked_ioctl) {
-		if (vdev->lock)
-			mutex_lock(vdev->lock);
+		if (vdev->lock && mutex_lock_interruptible(vdev->lock))
+			return -ERESTARTSYS;
 		if (video_is_registered(vdev))
 			ret = vdev->fops->unlocked_ioctl(filp, cmd, arg);
 		if (vdev->lock)
 			mutex_unlock(vdev->lock);
 	} else if (vdev->fops->ioctl) {
-		/* TODO: convert all drivers to unlocked_ioctl */
-		lock_kernel();
+		/* This code path is a replacement for the BKL. It is a major
+		 * hack but it will have to do for those drivers that are not
+		 * yet converted to use unlocked_ioctl.
+		 *
+		 * There are two options: if the driver implements struct
+		 * v4l2_device, then the lock defined there is used to
+		 * serialize the ioctls. Otherwise the v4l2 core lock defined
+		 * below is used. This lock is really bad since it serializes
+		 * completely independent devices.
+		 *
+		 * Both variants suffer from the same problem: if the driver
+		 * sleeps, then it blocks all ioctls since the lock is still
+		 * held. This is very common for VIDIOC_DQBUF since that
+		 * normally waits for a frame to arrive. As a result any other
+		 * ioctl calls will proceed very, very slowly since each call
+		 * will have to wait for the VIDIOC_QBUF to finish. Things that
+		 * should take 0.01s may now take 10-20 seconds.
+		 *
+		 * The workaround is to *not* take the lock for VIDIOC_DQBUF.
+		 * This actually works OK for videobuf-based drivers, since
+		 * videobuf will take its own internal lock.
+		 */
+		static DEFINE_MUTEX(v4l2_ioctl_mutex);
+		struct mutex *m = vdev->v4l2_dev ?
+			&vdev->v4l2_dev->ioctl_lock : &v4l2_ioctl_mutex;
+
+		if (cmd != VIDIOC_DQBUF && mutex_lock_interruptible(m))
+			return -ERESTARTSYS;
 		if (video_is_registered(vdev))
 			ret = vdev->fops->ioctl(filp, cmd, arg);
-		unlock_kernel();
+		if (cmd != VIDIOC_DQBUF)
+			mutex_unlock(m);
 	} else
 		ret = -ENOTTY;
 
@@ -264,8 +290,8 @@ static int v4l2_mmap(struct file *filp, struct vm_area_struct *vm)
 
 	if (!vdev->fops->mmap)
 		return ret;
-	if (vdev->lock)
-		mutex_lock(vdev->lock);
+	if (vdev->lock && mutex_lock_interruptible(vdev->lock))
+		return -ERESTARTSYS;
 	if (video_is_registered(vdev))
 		ret = vdev->fops->mmap(filp, vm);
 	if (vdev->lock)
@@ -283,7 +309,7 @@ static int v4l2_open(struct inode *inode, struct file *filp)
 	mutex_lock(&videodev_lock);
 	vdev = video_devdata(filp);
 	/* return ENODEV if the video device has already been removed. */
-	if (vdev == NULL) {
+	if (vdev == NULL || !video_is_registered(vdev)) {
 		mutex_unlock(&videodev_lock);
 		return -ENODEV;
 	}
@@ -291,8 +317,10 @@ static int v4l2_open(struct inode *inode, struct file *filp)
 	video_get(vdev);
 	mutex_unlock(&videodev_lock);
 	if (vdev->fops->open) {
-		if (vdev->lock)
-			mutex_lock(vdev->lock);
+		if (vdev->lock && mutex_lock_interruptible(vdev->lock)) {
+			ret = -ERESTARTSYS;
+			goto err;
+		}
 		if (video_is_registered(vdev))
 			ret = vdev->fops->open(filp);
 		else
@@ -301,6 +329,7 @@ static int v4l2_open(struct inode *inode, struct file *filp)
 			mutex_unlock(vdev->lock);
 	}
 
+err:
 	/* decrease the refcount in case of an error */
 	if (ret)
 		video_put(vdev);
@@ -595,7 +624,12 @@ void video_unregister_device(struct video_device *vdev)
 	if (!vdev || !video_is_registered(vdev))
 		return;
 
+	mutex_lock(&videodev_lock);
+	/* This must be in a critical section to prevent a race with v4l2_open.
+	 * Once this bit has been cleared video_get may never be called again.
+	 */
 	clear_bit(V4L2_FL_REGISTERED, &vdev->flags);
+	mutex_unlock(&videodev_lock);
 	device_unregister(&vdev->dev);
 }
 EXPORT_SYMBOL(video_unregister_device);
diff --git a/drivers/media/video/v4l2-device.c b/drivers/media/video/v4l2-device.c
index 0b08f96..7fe6f92 100644
--- a/drivers/media/video/v4l2-device.c
+++ b/drivers/media/video/v4l2-device.c
@@ -35,6 +35,7 @@ int v4l2_device_register(struct device *dev, struct v4l2_device *v4l2_dev)
 
 	INIT_LIST_HEAD(&v4l2_dev->subdevs);
 	spin_lock_init(&v4l2_dev->lock);
+	mutex_init(&v4l2_dev->ioctl_lock);
 	v4l2_dev->dev = dev;
 	if (dev == NULL) {
 		/* If dev == NULL, then name must be filled in by the caller */
diff --git a/drivers/media/video/via-camera.c b/drivers/media/video/via-camera.c
index 6f52818..222e72d 100644
--- a/drivers/media/video/via-camera.c
+++ b/drivers/media/video/via-camera.c
@@ -1358,7 +1358,7 @@ static __devinit int viacam_probe(struct platform_device *pdev)
 	 */
 	sensor_adapter = viafb_find_i2c_adapter(VIA_PORT_31);
 	cam->sensor = v4l2_i2c_new_subdev(&cam->v4l2_dev, sensor_adapter,
-			"ov7670", "ov7670", 0x42 >> 1, NULL);
+			"ov7670", 0x42 >> 1, NULL);
 	if (cam->sensor == NULL) {
 		dev_err(&pdev->dev, "Unable to find the sensor!\n");
 		ret = -ENODEV;
diff --git a/drivers/media/video/vino.c b/drivers/media/video/vino.c
index e5e005d..7e7eec4 100644
--- a/drivers/media/video/vino.c
+++ b/drivers/media/video/vino.c
@@ -4334,10 +4334,10 @@ static int __init vino_module_init(void)
 
 	vino_drvdata->decoder =
 		v4l2_i2c_new_subdev(&vino_drvdata->v4l2_dev, &vino_i2c_adapter,
-			       NULL, "saa7191", 0, I2C_ADDRS(0x45));
+			       "saa7191", 0, I2C_ADDRS(0x45));
 	vino_drvdata->camera =
 		v4l2_i2c_new_subdev(&vino_drvdata->v4l2_dev, &vino_i2c_adapter,
-			       NULL, "indycam", 0, I2C_ADDRS(0x2b));
+			       "indycam", 0, I2C_ADDRS(0x2b));
 
 	dprintk("init complete!\n");
 
diff --git a/drivers/media/video/w9966.c b/drivers/media/video/w9966.c
index 635420d..019ee20 100644
--- a/drivers/media/video/w9966.c
+++ b/drivers/media/video/w9966.c
@@ -815,7 +815,7 @@ out:
 
 static const struct v4l2_file_operations w9966_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl          = video_ioctl2,
+	.unlocked_ioctl = video_ioctl2,
 	.read           = w9966_v4l_read,
 };
 
diff --git a/drivers/media/video/zoran/zoran.h b/drivers/media/video/zoran/zoran.h
index 1f04438..b336259 100644
--- a/drivers/media/video/zoran/zoran.h
+++ b/drivers/media/video/zoran/zoran.h
@@ -388,6 +388,7 @@ struct zoran {
 	struct videocodec *vfe;	/* video front end */
 
 	struct mutex resource_lock;	/* prevent evil stuff */
+	struct mutex other_lock;	/* please merge with above */
 
 	u8 initialized;		/* flag if zoran has been correctly initialized */
 	int user;		/* number of current users */
diff --git a/drivers/media/video/zoran/zoran_card.c b/drivers/media/video/zoran/zoran_card.c
index 0aac376..e520abf 100644
--- a/drivers/media/video/zoran/zoran_card.c
+++ b/drivers/media/video/zoran/zoran_card.c
@@ -1227,6 +1227,7 @@ static int __devinit zoran_probe(struct pci_dev *pdev,
 	snprintf(ZR_DEVNAME(zr), sizeof(ZR_DEVNAME(zr)), "MJPEG[%u]", zr->id);
 	spin_lock_init(&zr->spinlock);
 	mutex_init(&zr->resource_lock);
+	mutex_init(&zr->other_lock);
 	if (pci_enable_device(pdev))
 		goto zr_unreg;
 	pci_read_config_byte(zr->pci_dev, PCI_CLASS_REVISION, &zr->revision);
@@ -1342,13 +1343,12 @@ static int __devinit zoran_probe(struct pci_dev *pdev,
 	}
 
 	zr->decoder = v4l2_i2c_new_subdev(&zr->v4l2_dev,
-		&zr->i2c_adapter, NULL, zr->card.i2c_decoder,
+		&zr->i2c_adapter, zr->card.i2c_decoder,
 		0, zr->card.addrs_decoder);
 
 	if (zr->card.i2c_encoder)
 		zr->encoder = v4l2_i2c_new_subdev(&zr->v4l2_dev,
-			&zr->i2c_adapter,
-			NULL, zr->card.i2c_encoder,
+			&zr->i2c_adapter, zr->card.i2c_encoder,
 			0, zr->card.addrs_encoder);
 
 	dprintk(2,
diff --git a/drivers/media/video/zoran/zoran_driver.c b/drivers/media/video/zoran/zoran_driver.c
index 401082b..67a52e8 100644
--- a/drivers/media/video/zoran/zoran_driver.c
+++ b/drivers/media/video/zoran/zoran_driver.c
@@ -49,7 +49,6 @@
 #include <linux/module.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/pci.h>
 #include <linux/vmalloc.h>
 #include <linux/wait.h>
@@ -913,7 +912,7 @@ static int zoran_open(struct file *file)
 	dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(-)=%d\n",
 		ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user + 1);
 
-	lock_kernel();
+	mutex_lock(&zr->other_lock);
 
 	if (zr->user >= 2048) {
 		dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
@@ -963,14 +962,14 @@ static int zoran_open(struct file *file)
 	file->private_data = fh;
 	fh->zr = zr;
 	zoran_open_init_session(fh);
-	unlock_kernel();
+	mutex_unlock(&zr->other_lock);
 
 	return 0;
 
 fail_fh:
 	kfree(fh);
 fail_unlock:
-	unlock_kernel();
+	mutex_unlock(&zr->other_lock);
 
 	dprintk(2, KERN_INFO "%s: open failed (%d), users(-)=%d\n",
 		ZR_DEVNAME(zr), res, zr->user);
@@ -989,7 +988,7 @@ zoran_close(struct file  *file)
 
 	/* kernel locks (fs/device.c), so don't do that ourselves
 	 * (prevents deadlocks) */
-	/*mutex_lock(&zr->resource_lock);*/
+	mutex_lock(&zr->other_lock);
 
 	zoran_close_end_session(fh);
 
@@ -1023,6 +1022,7 @@ zoran_close(struct file  *file)
 			encoder_call(zr, video, s_routing, 2, 0, 0);
 		}
 	}
+	mutex_unlock(&zr->other_lock);
 
 	file->private_data = NULL;
 	kfree(fh->overlay_mask);
@@ -3370,11 +3370,26 @@ static const struct v4l2_ioctl_ops zoran_ioctl_ops = {
 #endif
 };
 
+/* please use zr->resource_lock consistently and kill this wrapper */
+static long zoran_ioctl(struct file *file, unsigned int cmd,
+			unsigned long arg)
+{
+	struct zoran_fh *fh = file->private_data;
+	struct zoran *zr = fh->zr;
+	int ret;
+
+	mutex_lock(&zr->other_lock);
+	ret = video_ioctl2(file, cmd, arg);
+	mutex_unlock(&zr->other_lock);
+
+	return ret;
+}
+
 static const struct v4l2_file_operations zoran_fops = {
 	.owner = THIS_MODULE,
 	.open = zoran_open,
 	.release = zoran_close,
-	.ioctl = video_ioctl2,
+	.unlocked_ioctl = zoran_ioctl,
 	.read = zoran_read,
 	.write = zoran_write,
 	.mmap = zoran_mmap,