avutil/channel_layout: Fix leak of string

Fixes memleaks in the channel_layout FATE-test.

Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/libavutil/channel_layout.c b/libavutil/channel_layout.c
index 05ed35c078..8cc4efe4cf 100644
--- a/libavutil/channel_layout.c
+++ b/libavutil/channel_layout.c
@@ -587,6 +587,7 @@ int av_channel_layout_from_string(AVChannelLayout *channel_layout,
             av_free(channel);
             av_free(chname);
         }
+        av_free(chlist);
 
         return 0;
     }