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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2010-12-18 09:20:59 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-01-19 11:28:10 -0200 |
| commit | 9af39713feb53da96ba23fa94a73ffd0de50a815 (patch) | |
| tree | 264b278d0e741e031f0c9ed940fd78e5502de6e8 /drivers/media/common/saa7146_fops.c | |
| parent | b219ab9cfb2057de6e779169197f83265c310c83 (diff) | |
| download | kernel_samsung_smdk4412-9af39713feb53da96ba23fa94a73ffd0de50a815.zip kernel_samsung_smdk4412-9af39713feb53da96ba23fa94a73ffd0de50a815.tar.gz kernel_samsung_smdk4412-9af39713feb53da96ba23fa94a73ffd0de50a815.tar.bz2 | |
[media] saa7146: Convert from .ioctl to .unlocked_ioctl
Convert saa7146 to use core-assisted locking.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/common/saa7146_fops.c')
| -rw-r--r-- | drivers/media/common/saa7146_fops.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/media/common/saa7146_fops.c b/drivers/media/common/saa7146_fops.c index e3fedc6..1bd3dd7 100644 --- a/drivers/media/common/saa7146_fops.c +++ b/drivers/media/common/saa7146_fops.c @@ -15,18 +15,15 @@ int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit) } /* is it free? */ - mutex_lock(&dev->lock); if (vv->resources & bit) { DEB_D(("locked! vv->resources:0x%02x, we want:0x%02x\n",vv->resources,bit)); /* no, someone else uses it */ - mutex_unlock(&dev->lock); return 0; } /* it's free, grab it */ fh->resources |= bit; vv->resources |= bit; DEB_D(("res: get 0x%02x, cur:0x%02x\n",bit,vv->resources)); - mutex_unlock(&dev->lock); return 1; } @@ -37,11 +34,9 @@ void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits) BUG_ON((fh->resources & bits) != bits); - mutex_lock(&dev->lock); fh->resources &= ~bits; vv->resources &= ~bits; DEB_D(("res: put 0x%02x, cur:0x%02x\n",bits,vv->resources)); - mutex_unlock(&dev->lock); } @@ -396,7 +391,7 @@ static const struct v4l2_file_operations video_fops = .write = fops_write, .poll = fops_poll, .mmap = fops_mmap, - .ioctl = video_ioctl2, + .unlocked_ioctl = video_ioctl2, }; static void vv_callback(struct saa7146_dev *dev, unsigned long status) @@ -505,6 +500,7 @@ int saa7146_register_device(struct video_device **vid, struct saa7146_dev* dev, vfd->fops = &video_fops; vfd->ioctl_ops = &dev->ext_vv_data->ops; vfd->release = video_device_release; + vfd->lock = &dev->v4l2_lock; vfd->tvnorms = 0; for (i = 0; i < dev->ext_vv_data->num_stds; i++) vfd->tvnorms |= dev->ext_vv_data->stds[i].id; |