From: Gregor Jasny Date: Sun, 6 Jan 2008 14:15:54 +0000 (-0300) Subject: V4L/DVB (6944a): Fix Regression VIDIOCGMBUF ioctl hangs on bttv driver X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d9030f573031244dcffee026cc5e7e2f96f972ce;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git 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 Signed-off-by: Mauro Carvalho Chehab --- 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: