avformat/mpeg: move the header_str free into end label

fix CID: 1454875

Signed-off-by: Steven Liu <lq@chinaffmpeg.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/libavformat/mpeg.c b/libavformat/mpeg.c
index df37692..c33401f 100644
--- a/libavformat/mpeg.c
+++ b/libavformat/mpeg.c
@@ -905,9 +905,9 @@ static int vobsub_read_header(AVFormatContext *s)
         }
         sub_st->codecpar->extradata_size = header.len;
     }
-    av_free(header_str);
-
 end:
+
+    av_free(header_str);
     return ret;
 }