From 5549aa6d0d695b3563f068cae014a974aa013749 Mon Sep 17 00:00:00 2001
From: David Conrad <lessen42@gmail.com>
Date: Tue, 18 May 2010 21:21:37 +0000
Subject: [PATCH] matroskadec: Free ebml binary buffer on error

Based on a Chromium patch

Originally committed as revision 23169 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavformat/matroskadec.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 9126717df2..1bde1af8c4 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -641,8 +641,10 @@ static int ebml_read_binary(ByteIOContext *pb, int length, EbmlBin *bin)
 
     bin->size = length;
     bin->pos  = url_ftell(pb);
-    if (get_buffer(pb, bin->data, length) != length)
+    if (get_buffer(pb, bin->data, length) != length) {
+        av_freep(&bin->data);
         return AVERROR(EIO);
+    }
 
     return 0;
 }