[FFmpeg-cvslog] jvdec: Check return value of avio_seek and avoid modifying state if it fails

[Joakim Plate]

ffmpeg | branch: master | Joakim Plate <elupus at ecce.se> | Fri Feb  3 19:13:39 2012 +0000| [9712e82a4effb08d2b422c00435af0bb00b558b6] | committer: Justin Ruggles

jvdec: Check return value of avio_seek and avoid modifying state if it fails

Signed-off-by: Paul B Mahol <onemda at gmail.com>
Signed-off-by: Justin Ruggles <justin.ruggles at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9712e82a4effb08d2b422c00435af0bb00b558b6
---

 libavformat/jvdec.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/libavformat/jvdec.c b/libavformat/jvdec.c
index 82d96ca..c42e302 100644
--- a/libavformat/jvdec.c
+++ b/libavformat/jvdec.c
@@ -207,10 +207,11 @@ static int read_seek(AVFormatContext *s, int stream_index,
 
     if (i < 0 || i >= ast->nb_index_entries)
         return 0;
+    if (avio_seek(s->pb, ast->index_entries[i].pos, SEEK_SET) < 0)
+        return -1;
 
     jv->state = JV_AUDIO;
     jv->pts   = i;
-    avio_seek(s->pb, ast->index_entries[i].pos, SEEK_SET);
     return 0;
 }