[FFmpeg-cvslog] avcodec/snowdec: check av_frame_ref() return value

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Wed Dec 11 00:30:43 2013 +0100| [42874666a6cb53fac4eec99eff27f8975b799f92] | committer: Michael Niedermayer

avcodec/snowdec: check av_frame_ref() return value

Fixes CID1135742

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=42874666a6cb53fac4eec99eff27f8975b799f92
---

 libavcodec/snowdec.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/libavcodec/snowdec.c b/libavcodec/snowdec.c
index c9d40b8..79cf5a1 100644
--- a/libavcodec/snowdec.c
+++ b/libavcodec/snowdec.c
@@ -562,9 +562,12 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
     ff_snow_release_buffer(avctx);
 
     if(!(s->avctx->debug&2048))
-        av_frame_ref(picture, s->current_picture);
+        res = av_frame_ref(picture, s->current_picture);
     else
-        av_frame_ref(picture, s->mconly_picture);
+        res = av_frame_ref(picture, s->mconly_picture);
+
+    if (res < 0)
+        return res;
 
     *got_frame = 1;