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| author | Ingo Molnar <mingo@elte.hu> | 2009-04-08 10:35:30 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-04-08 10:35:30 +0200 |
| commit | 5ea472a77f8e4811ceee3f44a9deda6ad6e8b789 (patch) | |
| tree | a9ec5019e2b666a19874fc344ffb0dd5da6bce94 /drivers/media/video/v4l2-dev.c | |
| parent | 6c009ecef8cca28c7c09eb16d0802e37915a76e1 (diff) | |
| parent | 577c9c456f0e1371cbade38eaf91ae8e8a308555 (diff) | |
| download | linux-5ea472a77f8e4811ceee3f44a9deda6ad6e8b789.tar.bz2 | |
Merge commit 'v2.6.30-rc1' into perfcounters/core
Conflicts:
arch/powerpc/include/asm/systbl.h
arch/powerpc/include/asm/unistd.h
include/linux/init_task.h
Merge reason: the conflicts are non-trivial: PowerPC placement
of sys_perf_counter_open has to be mixed with the
new preadv/pwrite syscalls.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/media/video/v4l2-dev.c')
| -rw-r--r-- | drivers/media/video/v4l2-dev.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c index 91228b3df07d..31eac66411d7 100644 --- a/drivers/media/video/v4l2-dev.c +++ b/drivers/media/video/v4l2-dev.c @@ -229,7 +229,7 @@ static int v4l2_mmap(struct file *filp, struct vm_area_struct *vm) static int v4l2_open(struct inode *inode, struct file *filp) { struct video_device *vdev; - int ret; + int ret = 0; /* Check if the video device is available */ mutex_lock(&videodev_lock); @@ -243,7 +243,9 @@ static int v4l2_open(struct inode *inode, struct file *filp) /* and increase the device refcount */ video_get(vdev); mutex_unlock(&videodev_lock); - ret = vdev->fops->open(filp); + if (vdev->fops->open) + ret = vdev->fops->open(filp); + /* decrease the refcount in case of an error */ if (ret) video_put(vdev); @@ -254,7 +256,10 @@ static int v4l2_open(struct inode *inode, struct file *filp) static int v4l2_release(struct inode *inode, struct file *filp) { struct video_device *vdev = video_devdata(filp); - int ret = vdev->fops->release(filp); + int ret = 0; + + if (vdev->fops->release) + vdev->fops->release(filp); /* decrease the refcount unconditionally since the release() return value is ignored. */ |