From 820eacd84cff23b76693f4be1e28feb672f4488f Mon Sep 17 00:00:00 2001 From: Brandon Philips Date: Mon, 19 Nov 2007 15:10:48 -0300 Subject: [PATCH] V4L/DVB (6615): V4L: Fix VIDIOCGMBUF locking in saa7146 Fallout from videobuf_mmap_setup() locking fixes. Signed-off-by: Brandon Philips Signed-off-by: Mauro Carvalho Chehab --- drivers/media/common/saa7146_video.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/media/common/saa7146_video.c b/drivers/media/common/saa7146_video.c index 7cc4213ba56..ae36d101006 100644 --- a/drivers/media/common/saa7146_video.c +++ b/drivers/media/common/saa7146_video.c @@ -1205,13 +1205,10 @@ int saa7146_video_do_ioctl(struct inode *inode, struct file *file, unsigned int DEB_D(("VIDIOCGMBUF \n")); q = &fh->video_q; - mutex_lock(&q->lock); err = videobuf_mmap_setup(q,gbuffers,gbufsize, V4L2_MEMORY_MMAP); - if (err < 0) { - mutex_unlock(&q->lock); + if (err < 0) return err; - } gbuffers = err; memset(mbuf,0,sizeof(*mbuf)); @@ -1219,7 +1216,6 @@ int saa7146_video_do_ioctl(struct inode *inode, struct file *file, unsigned int mbuf->size = gbuffers * gbufsize; for (i = 0; i < gbuffers; i++) mbuf->offsets[i] = i * gbufsize; - mutex_unlock(&q->lock); return 0; } #endif