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| author |   Gregor Jasny <gjasny@web.de> | 2008-01-06 11:15:54 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-01-07 06:12:57 -0200 |
| commit | d9030f573031244dcffee026cc5e7e2f96f972ce (patch) | |
| tree | 679f54e4b5fa4082a641c0f90151476bac71e7c0 /drivers/media/video/bt8xx/bttv-driver.c | |
| parent | Linux 2.6.24-rc7 (diff) | |
| download | linux-dev-d9030f573031244dcffee026cc5e7e2f96f972ce.tar.xz linux-dev-d9030f573031244dcffee026cc5e7e2f96f972ce.zip | |
V4L/DVB (6944a): Fix Regression VIDIOCGMBUF ioctl hangs on bttv driver
Fix bttv VIDIOCGMBUF locking like done in commit
820eacd84cff23b76693f4be1e28feb672f4488f.
Signed-off-by: Gregor Jasny <gjasny@web.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to '')
| -rw-r--r-- | drivers/media/video/bt8xx/bttv-driver.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c index c02d92deacd2..581a3c955739 100644 --- a/drivers/media/video/bt8xx/bttv-driver.c +++ b/drivers/media/video/bt8xx/bttv-driver.c @@ -3063,11 +3063,10 @@ static int bttv_do_ioctl(struct inode *inode, struct file *file, struct video_mbuf *mbuf = arg; unsigned int i; - mutex_lock(&fh->cap.lock); retval = videobuf_mmap_setup(&fh->cap,gbuffers,gbufsize, V4L2_MEMORY_MMAP); if (retval < 0) - goto fh_unlock_and_return; + return retval; gbuffers = retval; memset(mbuf,0,sizeof(*mbuf)); @@ -3075,7 +3074,6 @@ static int bttv_do_ioctl(struct inode *inode, struct file *file, mbuf->size = gbuffers * gbufsize; for (i = 0; i < gbuffers; i++) mbuf->offsets[i] = i * gbufsize; - mutex_unlock(&fh->cap.lock); return 0; } case VIDIOCMCAPTURE: |