From 200c9b1c963c47e11f2dba37c90ef637412a3d00 Mon Sep 17 00:00:00 2001
From: Limin Wang <lance.lmwang@gmail.com>
Date: Mon, 22 Jun 2020 21:39:30 +0800
Subject: [PATCH] avutil/opt: check return value of av_bprint_finalize()

Reviewed-by:   Nicolas George <george@nsup.org>
Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
---
 libavutil/opt.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavutil/opt.c b/libavutil/opt.c
index 2c3f998d97..c8413fa5e1 100644
--- a/libavutil/opt.c
+++ b/libavutil/opt.c
@@ -2120,6 +2120,8 @@ int av_opt_serialize(void *obj, int opt_flags, int flags, char **buffer,
             av_freep(&buf);
         }
     }
-    av_bprint_finalize(&bprint, buffer);
+    ret = av_bprint_finalize(&bprint, buffer);
+    if (ret < 0)
+        return ret;
     return 0;
 }