[FFmpeg-cvslog] lavf/4xm: fix memory leak in error handing path

[Jun Zhao]

ffmpeg | branch: master | Jun Zhao <barryjzhao at tencent.com> | Mon Sep 23 10:50:21 2019 +0800| [5f13859873a45424a345186e8b9913a8c4cb834f] | committer: Jun Zhao

lavf/4xm: fix memory leak in error handing path

need to free the header in error path.

Reviewed-by: Michael Niedermayer <michael at niedermayer.cc>
Signed-off-by: Jun Zhao <barryjzhao at tencent.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5f13859873a45424a345186e8b9913a8c4cb834f
---

 libavformat/4xm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavformat/4xm.c b/libavformat/4xm.c
index a984fc9fdf..a6101a92ec 100644
--- a/libavformat/4xm.c
+++ b/libavformat/4xm.c
@@ -241,7 +241,8 @@ static int fourxm_read_header(AVFormatContext *s)
         size       = AV_RL32(&header[i + 4]);
         if (size > header_size - i - 8 && (fourcc_tag == vtrk_TAG || fourcc_tag == strk_TAG)) {
             av_log(s, AV_LOG_ERROR, "chunk larger than array %d>%d\n", size, header_size - i - 8);
-            return AVERROR_INVALIDDATA;
+            ret = AVERROR_INVALIDDATA;
+            goto fail;
         }
 
         if (fourcc_tag == std__TAG) {