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authorPawel Harlozinski <pawel.harlozinski@linux.intel.com>2019-11-12 16:02:36 +0300
committerMark Brown <broonie@kernel.org>2019-11-12 20:12:56 +0300
commit8f157d4ff039e03e2ed4cb602eeed2fd4687a58f (patch)
tree4a923e45b1a6e8f3a0a27dc6213c1210ed59736a /sound/soc/soc-jack.c
parent130d3e90777fe974e4b8fa100cec8faf19cac998 (diff)
downloadlinux-8f157d4ff039e03e2ed4cb602eeed2fd4687a58f.tar.xz
ASoC: Jack: Fix NULL pointer dereference in snd_soc_jack_report
Check for existance of jack before tracing. NULL pointer dereference has been reported by KASAN while unloading machine driver (snd_soc_cnl_rt274). Signed-off-by: Pawel Harlozinski <pawel.harlozinski@linux.intel.com> Link: https://lore.kernel.org/r/20191112130237.10141-1-pawel.harlozinski@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
Diffstat (limited to 'sound/soc/soc-jack.c')
-rw-r--r--sound/soc/soc-jack.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c
index a71d2340eb05..b5748dcd490f 100644
--- a/sound/soc/soc-jack.c
+++ b/sound/soc/soc-jack.c
@@ -82,10 +82,9 @@ void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask)
unsigned int sync = 0;
int enable;
- trace_snd_soc_jack_report(jack, mask, status);
-
if (!jack)
return;
+ trace_snd_soc_jack_report(jack, mask, status);
dapm = &jack->card->dapm;