[FFmpeg-cvslog] avformat/mov: Propagate errors in mov_switch_root.

[Jacob Trimble]

ffmpeg | branch: release/3.2 | Jacob Trimble <modmaker-at-google.com at ffmpeg.org> | Mon Nov 20 12:05:02 2017 -0800| [a03d488ae2e444847b64863ec3e3813465beaecc] | committer: Michael Niedermayer

avformat/mov: Propagate errors in mov_switch_root.

Signed-off-by: Jacob Trimble <modmaker at google.com>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit 2d9cf3bf16b94cd9db10dabad695c69c5cff4f58)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a03d488ae2e444847b64863ec3e3813465beaecc
---

 libavformat/mov.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index 7547c78957..7c245d14ee 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -5670,6 +5670,7 @@ static int should_retry(AVIOContext *pb, int error_code) {
 
 static int mov_switch_root(AVFormatContext *s, int64_t target)
 {
+    int ret;
     MOVContext *mov = s->priv_data;
     int i, j;
     int already_read = 0;
@@ -5706,8 +5707,10 @@ static int mov_switch_root(AVFormatContext *s, int64_t target)
 
     mov->found_mdat = 0;
 
-    if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
-        avio_feof(s->pb))
+    ret = mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX });
+    if (ret < 0)
+        return ret;
+    if (avio_feof(s->pb))
         return AVERROR_EOF;
     av_log(s, AV_LOG_TRACE, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));