[PATCH] When snd_soc_card_jack_new is not called or the call fails, calling this function causes a null pointer access

[xingxing qiao]

Signed-off-by: mnlife <mnlife at 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