[FFmpeg-cvslog] wtv: check seek_by_sector return value

[Vittorio Giovara]

ffmpeg | branch: master | Vittorio Giovara <vittorio.giovara at gmail.com> | Sat Oct 18 01:12:19 2014 +0100| [9fbc613f0df1628e7e78bca791fa8833846f8210] | committer: Vittorio Giovara

wtv: check seek_by_sector return value

CC: libav-stable at libav.org
Bug-Id: CID 1198258

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9fbc613f0df1628e7e78bca791fa8833846f8210
---

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

diff --git a/libavformat/wtv.c b/libavformat/wtv.c
index c85f374..a3f8c27 100644
--- a/libavformat/wtv.c
+++ b/libavformat/wtv.c
@@ -972,7 +972,9 @@ static int read_header(AVFormatContext *s)
     avio_skip(s->pb, 4);
     root_sector = avio_rl32(s->pb);
 
-    seek_by_sector(s->pb, root_sector, 0);
+    ret = seek_by_sector(s->pb, root_sector, 0);
+    if (ret < 0)
+        return ret;
     root_size = avio_read(s->pb, root, root_size);
     if (root_size < 0)
         return AVERROR_INVALIDDATA;