lavfi: check av_strdup() return value

Signed-off-by: Paul B Mahol <onemda@gmail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/libavfilter/af_join.c b/libavfilter/af_join.c
index a1717c63b9..71a454bba7 100644
--- a/libavfilter/af_join.c
+++ b/libavfilter/af_join.c
@@ -214,6 +214,8 @@ static av_cold int join_init(AVFilterContext *ctx)
         snprintf(name, sizeof(name), "input%d", i);
         pad.type           = AVMEDIA_TYPE_AUDIO;
         pad.name           = av_strdup(name);
+        if (!pad.name)
+            return AVERROR(ENOMEM);
         pad.filter_frame   = filter_frame;
 
         pad.needs_fifo = 1;