From fd867ffd432eb3da2403f6fb5e02e90ae4dadbc8 Mon Sep 17 00:00:00 2001 From: Stefano Sabatini Date: Fri, 26 Dec 2008 09:12:12 +0000 Subject: [PATCH] Add missing check on the result of a VIDIOCCAPTURE ioctl. Originally committed as revision 16316 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavdevice/v4l.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/libavdevice/v4l.c b/libavdevice/v4l.c index e260dac451..6212955352 100644 --- a/libavdevice/v4l.c +++ b/libavdevice/v4l.c @@ -186,7 +186,10 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap) s->frame_format = pict.palette; val = 1; - ioctl(video_fd, VIDIOCCAPTURE, &val); + if (ioctl(video_fd, VIDIOCCAPTURE, &val) < 0) { + av_log(s1, AV_LOG_ERROR, "VIDIOCCAPTURE: %s\n", strerror(errno)); + goto fail; + } s->time_frame = av_gettime() * s->time_base.den / s->time_base.num; s->use_mmap = 0;