From 425907809b48a7f44c0508e3dc09b8ba0c023d06 Mon Sep 17 00:00:00 2001
From: Joakim Plate <elupus@ecce.se>
Date: Wed, 14 Sep 2011 19:32:29 +0200
Subject: [PATCH] [r3d] Check return value of avio_seek and avoid modifying
 state if it fails

---
 libavformat/r3d.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavformat/r3d.c b/libavformat/r3d.c
index 4658ea1e5d..d84fd2cc1d 100644
--- a/libavformat/r3d.c
+++ b/libavformat/r3d.c
@@ -365,7 +365,8 @@ static int r3d_seek(AVFormatContext *s, int stream_index, int64_t sample_time, i
             frame_num, sample_time);
 
     if (frame_num < r3d->video_offsets_count) {
-        avio_seek(s->pb, r3d->video_offsets_count, SEEK_SET);
+        if (avio_seek(s->pb, r3d->video_offsets_count, SEEK_SET) < 0)
+            return -1;
     } else {
         av_log(s, AV_LOG_ERROR, "could not seek to frame %d\n", frame_num);
         return -1;