[FFmpeg-cvslog] avformat/qoadec: Check ffio_ensure_seekback()

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at outlook.com> | Wed May 22 06:53:07 2024 +0200| [95faf45af16b15d55b3d9f8f3244d1437649d763] | committer: Andreas Rheinhardt

avformat/qoadec: Check ffio_ensure_seekback()

Fixes Coverity issue #1598406.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=95faf45af16b15d55b3d9f8f3244d1437649d763
---

 libavformat/qoadec.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libavformat/qoadec.c b/libavformat/qoadec.c
index 9cce5157fc..a9632c46c3 100644
--- a/libavformat/qoadec.c
+++ b/libavformat/qoadec.c
@@ -41,6 +41,7 @@ static int qoa_read_header(AVFormatContext *s)
 {
     AVIOContext *pb = s->pb;
     AVStream *st;
+    int ret;
 
     st = avformat_new_stream(s, NULL);
     if (!st)
@@ -52,7 +53,9 @@ static int qoa_read_header(AVFormatContext *s)
     st->duration = avio_rb32(pb);
     st->start_time = 0;
 
-    ffio_ensure_seekback(pb, 4);
+    ret = ffio_ensure_seekback(pb, 4);
+    if (ret < 0)
+        return ret;
     st->codecpar->ch_layout.nb_channels = avio_r8(pb);
     if (st->codecpar->ch_layout.nb_channels == 0)
         return AVERROR_INVALIDDATA;