From: mnlife mnlife@foxmail.com When snd_soc_card_jack_new is not called or the call fails, calling this function causes a null pointer access Signed-off-by: mnlife mnlife@foxmail.com --- sound/soc/soc-jack.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c index 0f1820f36b4d..51b799ee98b7 100644 --- a/sound/soc/soc-jack.c +++ b/sound/soc/soc-jack.c @@ -44,7 +44,7 @@ void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask)      unsigned int sync = 0;      int enable; -     if (!jack) +     if (!jack || !jack->jack)           return;      trace_snd_soc_jack_report(jack, mask, status); -- 2.17.1 .