avformat/jacosubdec: Fix memleak upon read header failure

The already parsed subtitles (contained in an FFDemuxSubtitlesQueue)
would leak if an error happened upon reading a subsequent subtitle.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>

diff --git a/libavformat/jacosubdec.c b/libavformat/jacosubdec.c
index 121c86d659687ecd224711e429af6a488826261c..3414eb39386b920bce6b4d75477529351f1c2007 100644 (file)
--- a/libavformat/jacosubdec.c
+++ b/libavformat/jacosubdec.c
@@ -188,8 +188,10 @@ static int jacosub_read_header(AVFormatContext *s)
             AVPacket *sub;
 
             sub = ff_subtitles_queue_insert(&jacosub->q, line, len, merge_line);
-            if (!sub)
-                return AVERROR(ENOMEM);
+            if (!sub) {
+                ret = AVERROR(ENOMEM);
+                goto fail;
+            }
             sub->pos = pos;
             merge_line = len > 1 && !strcmp(&line[len - 2], "\\\n");
             continue;