[tmv] Check return value of avio_seek and avoid modifying state if it fails

1 files changed, 2 insertions, 1 deletions

diff --git a/libavformat/tmv.c b/libavformat/tmv.c
index 9df11a4d11..3fce1e8bf0 100644
--- a/libavformat/tmv.c
+++ b/libavformat/tmv.c
@@ -173,7 +173,8 @@ static int tmv_read_seek(AVFormatContext *s, int stream_index,
     pos = timestamp *
           (tmv->audio_chunk_size + tmv->video_chunk_size + tmv->padding);
 
-    avio_seek(s->pb, pos + TMV_HEADER_SIZE, SEEK_SET);
+    if (avio_seek(s->pb, pos + TMV_HEADER_SIZE, SEEK_SET) < 0)
+        return -1;
     tmv->stream_index = 0;
     return 0;
 }