diff options
| author |   Hans Verkuil <hverkuil@xs4all.nl> | 2008-07-30 08:43:36 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-10-12 09:36:47 -0200 |
| commit | d56dc61265d2527a63ab5b0f03199a43cd89ca36 (patch) | |
| tree | bea2a5b12fc120ca6e8797b2f16ad9696e0f25dd /drivers/media/video/cafe_ccic.c | |
| parent | V4L/DVB (8561): make ivtv_claim_stream() static (diff) | |
| download | linux-dev-d56dc61265d2527a63ab5b0f03199a43cd89ca36.tar.xz linux-dev-d56dc61265d2527a63ab5b0f03199a43cd89ca36.zip | |
V4L/DVB (8613): v4l: move BKL down to the driver level.
The BKL is now moved from the video_open function in v4l2-dev.c to the
various drivers. It seems about a third of the drivers already has a
lock of some sort protecting the open(), another third uses
video_exclusive_open (yuck!) and the last third required adding the
BKL in their open function.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cafe_ccic.c')
| -rw-r--r-- | drivers/media/video/cafe_ccic.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/media/video/cafe_ccic.c b/drivers/media/video/cafe_ccic.c index 5405c30dbb04..e9994c81df66 100644 --- a/drivers/media/video/cafe_ccic.c +++ b/drivers/media/video/cafe_ccic.c @@ -1476,9 +1476,12 @@ static int cafe_v4l_open(struct inode *inode, struct file *filp) { struct cafe_camera *cam; + lock_kernel(); cam = cafe_find_dev(iminor(inode)); - if (cam == NULL) + if (cam == NULL) { + unlock_kernel(); return -ENODEV; + } filp->private_data = cam; mutex_lock(&cam->s_mutex); @@ -1490,6 +1493,7 @@ static int cafe_v4l_open(struct inode *inode, struct file *filp) } (cam->users)++; mutex_unlock(&cam->s_mutex); + unlock_kernel(); return 0; } |