Input: remove user counters from drivers/usb/input since input

       core takes care of calling open and close methods only
       when needed.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

10 files changed, 23 insertions, 106 deletions

diff --git a/drivers/usb/input/aiptek.c b/drivers/usb/input/aiptek.c
index 68d9d28..a692185 100644
--- a/drivers/usb/input/aiptek.c
+++ b/drivers/usb/input/aiptek.c
@@ -324,7 +324,6 @@ struct aiptek {
 	struct aiptek_settings curSetting;	/* tablet's current programmable */
 	struct aiptek_settings newSetting;	/* ... and new param settings    */
 	unsigned int ifnum;			/* interface number for IO       */
-	int openCount;				/* module use counter            */
 	int diagnostic;				/* tablet diagnostic codes       */
 	unsigned long eventCount;		/* event count                   */
 	int inDelay;				/* jitter: in jitter delay?      */
@@ -814,15 +813,9 @@ static int aiptek_open(struct input_dev *inputdev)
 {
 	struct aiptek *aiptek = inputdev->private;
 
-	if (aiptek->openCount++ > 0) {
-		return 0;
-	}
-
 	aiptek->urb->dev = aiptek->usbdev;
-	if (usb_submit_urb(aiptek->urb, GFP_KERNEL) != 0) {
-		aiptek->openCount--;
+	if (usb_submit_urb(aiptek->urb, GFP_KERNEL) != 0)
 		return -EIO;
-	}
 
 	return 0;
 }
@@ -834,9 +827,7 @@ static void aiptek_close(struct input_dev *inputdev)
 {
 	struct aiptek *aiptek = inputdev->private;
 
-	if (--aiptek->openCount == 0) {
-		usb_kill_urb(aiptek->urb);
-	}
+	usb_kill_urb(aiptek->urb);
 }
 
 /***********************************************************************
@@ -2252,7 +2243,6 @@ static void aiptek_disconnect(struct usb_interface *intf)
 				AIPTEK_PACKET_LENGTH,
 				aiptek->data, aiptek->data_dma);
 		kfree(aiptek);
-		aiptek = NULL;
 	}
 }
 
diff --git a/drivers/usb/input/ati_remote.c b/drivers/usb/input/ati_remote.c
index cf45add..db95c97 100644
--- a/drivers/usb/input/ati_remote.c
+++ b/drivers/usb/input/ati_remote.c
@@ -113,11 +113,11 @@
 #define DATA_BUFSIZE      63    /* size of URB data buffers */
 #define ATI_INPUTNUM      1     /* Which input device to register as */
 
-static unsigned long channel_mask = 0;
+static unsigned long channel_mask;
 module_param(channel_mask, ulong, 0444);
 MODULE_PARM_DESC(channel_mask, "Bitmask of remote control channels to ignore");
 
-static int debug = 0;
+static int debug;
 module_param(debug, int, 0444);
 MODULE_PARM_DESC(debug, "Enable extra debug messages and information");
 
@@ -174,8 +174,6 @@ struct ati_remote {
 	dma_addr_t inbuf_dma;
 	dma_addr_t outbuf_dma;
 
-	int open;                   /* open counter */
-
 	unsigned char old_data[2];  /* Detect duplicate events */
 	unsigned long old_jiffies;
 	unsigned long acc_jiffies;  /* handle acceleration */
@@ -328,25 +326,16 @@ static void ati_remote_dump(unsigned char *data, unsigned int len)
 static int ati_remote_open(struct input_dev *inputdev)
 {
 	struct ati_remote *ati_remote = inputdev->private;
-	int retval = 0;
-
-	down(&disconnect_sem);
-
-	if (ati_remote->open++)
-		goto exit;
 
 	/* On first open, submit the read urb which was set up previously. */
 	ati_remote->irq_urb->dev = ati_remote->udev;
 	if (usb_submit_urb(ati_remote->irq_urb, GFP_KERNEL)) {
 		dev_err(&ati_remote->interface->dev,
 			"%s: usb_submit_urb failed!\n", __FUNCTION__);
-		ati_remote->open--;
-		retval = -EIO;
+		return -EIO;
 	}
 
-exit:
-	up(&disconnect_sem);
-	return retval;
+	return 0;
 }
 
 /*
@@ -356,8 +345,7 @@ static void ati_remote_close(struct input_dev *inputdev)
 {
 	struct ati_remote *ati_remote = inputdev->private;
 
-	if (!--ati_remote->open)
-		usb_kill_urb(ati_remote->irq_urb);
+	usb_kill_urb(ati_remote->irq_urb);
 }
 
 /*
@@ -602,8 +590,6 @@ static void ati_remote_irq_in(struct urb *urb, struct pt_regs *regs)
  */
 static void ati_remote_delete(struct ati_remote *ati_remote)
 {
-	if (!ati_remote) return;
-
 	if (ati_remote->irq_urb)
 		usb_kill_urb(ati_remote->irq_urb);
 
@@ -799,8 +785,6 @@ static void ati_remote_disconnect(struct usb_interface *interface)
 {
 	struct ati_remote *ati_remote;
 
-	down(&disconnect_sem);
-
 	ati_remote = usb_get_intfdata(interface);
 	usb_set_intfdata(interface, NULL);
 	if (!ati_remote) {
@@ -809,8 +793,6 @@ static void ati_remote_disconnect(struct usb_interface *interface)
 	}
 
 	ati_remote_delete(ati_remote);
-
-	up(&disconnect_sem);
 }
 
 /*
diff --git a/drivers/usb/input/itmtouch.c b/drivers/usb/input/itmtouch.c
index 5122a7f..47dec6a 100644
--- a/drivers/usb/input/itmtouch.c
+++ b/drivers/usb/input/itmtouch.c
@@ -137,15 +137,10 @@ static int itmtouch_open(struct input_dev *input)
 {
 	struct itmtouch_dev *itmtouch = input->private;
 
-	if (itmtouch->users++)
-		return 0;
-
 	itmtouch->readurb->dev = itmtouch->usbdev;
 
-	if (usb_submit_urb(itmtouch->readurb, GFP_KERNEL)) {
-		itmtouch->users--;
+	if (usb_submit_urb(itmtouch->readurb, GFP_KERNEL))
 		return -EIO;
-	}
 
 	return 0;
 }
@@ -154,8 +149,7 @@ static void itmtouch_close(struct input_dev *input)
 {
 	struct itmtouch_dev *itmtouch = input->private;
 
-	if (!--itmtouch->users)
-		usb_kill_urb(itmtouch->readurb);
+	usb_kill_urb(itmtouch->readurb);
 }
 
 static int itmtouch_probe(struct usb_interface *intf, const struct usb_device_id *id)
diff --git a/drivers/usb/input/kbtab.c b/drivers/usb/input/kbtab.c
index fff5753..d2f0f90 100644
--- a/drivers/usb/input/kbtab.c
+++ b/drivers/usb/input/kbtab.c
@@ -36,7 +36,6 @@ struct kbtab {
 	struct input_dev dev;
 	struct usb_device *usbdev;
 	struct urb *irq;
-	int open;
 	int x, y;
 	int button;
 	int pressure;
@@ -105,14 +104,9 @@ static int kbtab_open(struct input_dev *dev)
 {
 	struct kbtab *kbtab = dev->private;
 
-	if (kbtab->open++)
-		return 0;
-
 	kbtab->irq->dev = kbtab->usbdev;
-	if (usb_submit_urb(kbtab->irq, GFP_KERNEL)) {
-		kbtab->open--;
+	if (usb_submit_urb(kbtab->irq, GFP_KERNEL))
 		return -EIO;
-	}
 
 	return 0;
 }
@@ -121,8 +115,7 @@ static void kbtab_close(struct input_dev *dev)
 {
 	struct kbtab *kbtab = dev->private;
 
-	if (!--kbtab->open)
-		usb_kill_urb(kbtab->irq);
+	usb_kill_urb(kbtab->irq);
 }
 
 static int kbtab_probe(struct usb_interface *intf, const struct usb_device_id *id)
diff --git a/drivers/usb/input/mtouchusb.c b/drivers/usb/input/mtouchusb.c
index ec1dd62..09b5cc7 100644
--- a/drivers/usb/input/mtouchusb.c
+++ b/drivers/usb/input/mtouchusb.c
@@ -98,7 +98,6 @@ struct mtouch_usb {
 	struct urb *irq;
 	struct usb_device *udev;
 	struct input_dev input;
-	int open;
 	char name[128];
 	char phys[64];
 };
@@ -155,15 +154,10 @@ static int mtouchusb_open(struct input_dev *input)
 {
 	struct mtouch_usb *mtouch = input->private;
 
-	if (mtouch->open++)
-		return 0;
-
 	mtouch->irq->dev = mtouch->udev;
 
-	if (usb_submit_urb(mtouch->irq, GFP_ATOMIC)) {
-		mtouch->open--;
+	if (usb_submit_urb(mtouch->irq, GFP_ATOMIC))
 		return -EIO;
-	}
 
 	return 0;
 }
@@ -172,8 +166,7 @@ static void mtouchusb_close(struct input_dev *input)
 {
 	struct mtouch_usb *mtouch = input->private;
 
-	if (!--mtouch->open)
-		usb_kill_urb(mtouch->irq);
+	usb_kill_urb(mtouch->irq);
 }
 
 static int mtouchusb_alloc_buffers(struct usb_device *udev, struct mtouch_usb *mtouch)
diff --git a/drivers/usb/input/touchkitusb.c b/drivers/usb/input/touchkitusb.c
index a71f1bb..386595e 100644
--- a/drivers/usb/input/touchkitusb.c
+++ b/drivers/usb/input/touchkitusb.c
@@ -69,7 +69,6 @@ struct touchkit_usb {
 	struct urb *irq;
 	struct usb_device *udev;
 	struct input_dev input;
-	int open;
 	char name[128];
 	char phys[64];
 };
@@ -134,15 +133,10 @@ static int touchkit_open(struct input_dev *input)
 {
 	struct touchkit_usb *touchkit = input->private;
 
-	if (touchkit->open++)
-		return 0;
-
 	touchkit->irq->dev = touchkit->udev;
 
-	if (usb_submit_urb(touchkit->irq, GFP_ATOMIC)) {
-		touchkit->open--;
+	if (usb_submit_urb(touchkit->irq, GFP_ATOMIC))
 		return -EIO;
-	}
 
 	return 0;
 }
@@ -151,8 +145,7 @@ static void touchkit_close(struct input_dev *input)
 {
 	struct touchkit_usb *touchkit = input->private;
 
-	if (!--touchkit->open)
-		usb_kill_urb(touchkit->irq);
+	usb_kill_urb(touchkit->irq);
 }
 
 static int touchkit_alloc_buffers(struct usb_device *udev,
diff --git a/drivers/usb/input/usbkbd.c b/drivers/usb/input/usbkbd.c
index 255b47a..f35db19 100644
--- a/drivers/usb/input/usbkbd.c
+++ b/drivers/usb/input/usbkbd.c
@@ -72,7 +72,6 @@ struct usb_kbd {
 	unsigned char newleds;
 	char name[128];
 	char phys[64];
-	int open;
 
 	unsigned char *new;
 	struct usb_ctrlrequest *cr;
@@ -180,14 +179,9 @@ static int usb_kbd_open(struct input_dev *dev)
 {
 	struct usb_kbd *kbd = dev->private;
 
-	if (kbd->open++)
-		return 0;
-
 	kbd->irq->dev = kbd->usbdev;
-	if (usb_submit_urb(kbd->irq, GFP_KERNEL)) {
-		kbd->open--;
+	if (usb_submit_urb(kbd->irq, GFP_KERNEL))
 		return -EIO;
-	}
 
 	return 0;
 }
@@ -196,8 +190,7 @@ static void usb_kbd_close(struct input_dev *dev)
 {
 	struct usb_kbd *kbd = dev->private;
 
-	if (!--kbd->open)
-		usb_kill_urb(kbd->irq);
+	usb_kill_urb(kbd->irq);
 }
 
 static int usb_kbd_alloc_mem(struct usb_device *dev, struct usb_kbd *kbd)
diff --git a/drivers/usb/input/usbmouse.c b/drivers/usb/input/usbmouse.c
index 8ca2811..1ec41b5 100644
--- a/drivers/usb/input/usbmouse.c
+++ b/drivers/usb/input/usbmouse.c
@@ -51,7 +51,6 @@ struct usb_mouse {
 	struct usb_device *usbdev;
 	struct input_dev dev;
 	struct urb *irq;
-	int open;
 
 	signed char *data;
 	dma_addr_t data_dma;
@@ -101,14 +100,9 @@ static int usb_mouse_open(struct input_dev *dev)
 {
 	struct usb_mouse *mouse = dev->private;
 
-	if (mouse->open++)
-		return 0;
-
 	mouse->irq->dev = mouse->usbdev;
-	if (usb_submit_urb(mouse->irq, GFP_KERNEL)) {
-		mouse->open--;
+	if (usb_submit_urb(mouse->irq, GFP_KERNEL))
 		return -EIO;
-	}
 
 	return 0;
 }
@@ -117,8 +111,7 @@ static void usb_mouse_close(struct input_dev *dev)
 {
 	struct usb_mouse *mouse = dev->private;
 
-	if (!--mouse->open)
-		usb_kill_urb(mouse->irq);
+	usb_kill_urb(mouse->irq);
 }
 
 static int usb_mouse_probe(struct usb_interface * intf, const struct usb_device_id * id)
diff --git a/drivers/usb/input/wacom.c b/drivers/usb/input/wacom.c
index b3420e1..e37d31b 100644
--- a/drivers/usb/input/wacom.c
+++ b/drivers/usb/input/wacom.c
@@ -102,7 +102,6 @@ struct wacom {
 	struct urb *irq;
 	struct wacom_features *features;
 	int tool[2];
-	int open;
 	__u32 serial[2];
 	char phys[32];
 };
@@ -771,14 +770,9 @@ static int wacom_open(struct input_dev *dev)
 {
 	struct wacom *wacom = dev->private;
 
-	if (wacom->open++)
-		return 0;
-
 	wacom->irq->dev = wacom->usbdev;
-	if (usb_submit_urb(wacom->irq, GFP_KERNEL)) {
-		wacom->open--;
+	if (usb_submit_urb(wacom->irq, GFP_KERNEL))
 		return -EIO;
-	}
 
 	return 0;
 }
@@ -787,8 +781,7 @@ static void wacom_close(struct input_dev *dev)
 {
 	struct wacom *wacom = dev->private;
 
-	if (!--wacom->open)
-		usb_kill_urb(wacom->irq);
+	usb_kill_urb(wacom->irq);
 }
 
 static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id)
diff --git a/drivers/usb/input/xpad.c b/drivers/usb/input/xpad.c
index a8076cc..a7fa1b1 100644
--- a/drivers/usb/input/xpad.c
+++ b/drivers/usb/input/xpad.c
@@ -110,7 +110,6 @@ struct usb_xpad {
 	dma_addr_t idata_dma;
 
 	char phys[65];				/* physical device path */
-	int open_count;				/* reference count */
 };
 
 /*
@@ -197,14 +196,9 @@ static int xpad_open (struct input_dev *dev)
 {
 	struct usb_xpad *xpad = dev->private;
 
-	if (xpad->open_count++)
-		return 0;
-
 	xpad->irq_in->dev = xpad->udev;
-	if (usb_submit_urb(xpad->irq_in, GFP_KERNEL)) {
-		xpad->open_count--;
+	if (usb_submit_urb(xpad->irq_in, GFP_KERNEL))
 		return -EIO;
-	}
 
 	return 0;
 }
@@ -213,8 +207,7 @@ static void xpad_close (struct input_dev *dev)
 {
 	struct usb_xpad *xpad = dev->private;
 
-	if (!--xpad->open_count)
-		usb_kill_urb(xpad->irq_in);
+	usb_kill_urb(xpad->irq_in);
 }
 
 static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id)