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/zr364xx.c | |
| parent | 95f73c5b57990c97047c200b8746ab62a360c5bc (diff) | |
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/zr364xx.c')
| -rw-r--r-- | drivers/media/video/zr364xx.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/media/video/zr364xx.c b/drivers/media/video/zr364xx.c index 18d1c4ba79fb..4e1ef10d22df 100644 --- a/drivers/media/video/zr364xx.c +++ b/drivers/media/video/zr364xx.c @@ -643,14 +643,18 @@ static int zr364xx_open(struct inode *inode, struct file *file) cam->skip = 2; + lock_kernel(); err = video_exclusive_open(inode, file); - if (err < 0) + if (err < 0) { + unlock_kernel(); return err; + } if (!cam->framebuf) { cam->framebuf = vmalloc_32(MAX_FRAME_SIZE * FRAMES); if (!cam->framebuf) { info("vmalloc_32 failed!"); + unlock_kernel(); return -ENOMEM; } } @@ -664,6 +668,7 @@ static int zr364xx_open(struct inode *inode, struct file *file) if (err < 0) { info("error during open sequence: %d", i); mutex_unlock(&cam->lock); + unlock_kernel(); return err; } } @@ -676,6 +681,7 @@ static int zr364xx_open(struct inode *inode, struct file *file) mdelay(100); mutex_unlock(&cam->lock); + unlock_kernel(); return 0; } |