From fd867ffd432eb3da2403f6fb5e02e90ae4dadbc8 Mon Sep 17 00:00:00 2001
From: Stefano Sabatini <stefano.sabatini-lala@poste.it>
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 e260dac4512..6212955352a 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;
--
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