[FFmpeg-cvslog] vqa: fix double free on corrupted streams

[Laurent Aimar]

ffmpeg | branch: release/0.5 | Laurent Aimar <fenrir at videolan.org> | Sat Oct  8 23:40:37 2011 +0200| [23aaa82b1d30456339c09b3591fe78534839d4d0] | committer: Michael Niedermayer

vqa: fix double free on corrupted streams

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
(cherry picked from commit e3123856c79c36507772ada1bcda6cfe36a1e297)

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=23aaa82b1d30456339c09b3591fe78534839d4d0
---

 libavformat/westwood.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/libavformat/westwood.c b/libavformat/westwood.c
index d2736ac..7ca1797 100644
--- a/libavformat/westwood.c
+++ b/libavformat/westwood.c
@@ -279,10 +279,8 @@ static int wsvqa_read_header(AVFormatContext *s,
     /* there are 0 or more chunks before the FINF chunk; iterate until
      * FINF has been skipped and the file will be ready to be demuxed */
     do {
-        if (get_buffer(pb, scratch, VQA_PREAMBLE_SIZE) != VQA_PREAMBLE_SIZE) {
-            av_free(st->codec->extradata);
+        if (get_buffer(pb, scratch, VQA_PREAMBLE_SIZE) != VQA_PREAMBLE_SIZE)
             return AVERROR(EIO);
-        }
         chunk_tag = AV_RB32(&scratch[0]);
         chunk_size = AV_RB32(&scratch[4]);