[FFmpeg-cvslog] matroskaenc: check avio_open_dyn_buf() retuen code

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sat Oct 20 18:38:36 2012 +0200| [b1f517f503139ab9d0c406228b53663e86a128df] | committer: Michael Niedermayer

matroskaenc: check avio_open_dyn_buf() retuen code

Fixes CID703629
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b1f517f503139ab9d0c406228b53663e86a128df
---

 libavformat/matroskaenc.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
index bcded7c..0d387e7 100644
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@@ -1166,8 +1166,12 @@ static int mkv_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
     }
 
     if (!s->pb->seekable) {
-        if (!mkv->dyn_bc)
-            avio_open_dyn_buf(&mkv->dyn_bc);
+        if (!mkv->dyn_bc) {
+            if ((ret = avio_open_dyn_buf(&mkv->dyn_bc)) < 0) {
+                av_log(s, AV_LOG_ERROR, "Failed to open dynamic buffer\n");
+                return ret;
+            }
+        }
         pb = mkv->dyn_bc;
     }