From b31980dee5f11932b40443e72ff33603e7a34140 Mon Sep 17 00:00:00 2001 From: Meng Wang Date: Tue, 30 Jun 2020 16:52:24 +0800 Subject: [PATCH] ASoC: pcm: add null check for be_substream be_substream returns from snd_soc_dpcm_get_substream could be NULL and add NULL check for be_substream. Change-Id: I187bd6f22317cdbd6c6def3ee5b0afd3190fa810 Signed-off-by: Meng Wang --- sound/soc/soc-pcm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 6041249fc0dd..d95d18390ecd 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1319,6 +1319,8 @@ static void dpcm_be_reparent(struct snd_soc_pcm_runtime *fe, return; be_substream = snd_soc_dpcm_get_substream(be, stream); + if (be_substream == NULL) + return; for_each_dpcm_fe(be, stream, dpcm) { if (dpcm->fe == fe)