Ping for review, thanks!
> On Nov 21, 2019, at 3:08 PM, quinkbl...@foxmail.com wrote:
>
> From: Zhao Zhili <zhiliz...@tencent.com>
>
> ---
> libavdevice/lavfi.c | 10 +++++++---
> 1 file changed, 7 insertions(+), 3 deletions(-)
>
> diff --git a/libavdevice/lavfi.c b/libavdevice/lavfi.c
> index ca8f05f3f7..c949ff7e12 100644
> --- a/libavdevice/lavfi.c
> +++ b/libavdevice/lavfi.c
> @@ -302,9 +302,13 @@ av_cold static int lavfi_read_header(AVFormatContext
> *avctx)
>
> if (lavfi->dump_graph) {
> char *dump = avfilter_graph_dump(lavfi->graph, lavfi->dump_graph);
> - fputs(dump, stderr);
> - fflush(stderr);
> - av_free(dump);
> + if (dump != NULL) {
> + fputs(dump, stderr);
> + fflush(stderr);
> + av_free(dump);
> + } else {
> + FAIL(AVERROR(ENOMEM));
> + }
> }
>
> /* fill each stream with the information in the corresponding sink */
> --
> 2.22.0
>
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