diff options
| author | Pawel Harlozinski <pawel.harlozinski@linux.intel.com> | 2019-11-12 14:02:36 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-17 20:34:55 +0100 |
| commit | d88d9321e88cce771734377577767db0b1fea0cf (patch) | |
| tree | b75ad2b337f27e1f87013818bc8bb67f1740f212 /sound/soc | |
| parent | 29674d00ca2b363863d397ab9226f6846206080b (diff) | |
ASoC: Jack: Fix NULL pointer dereference in snd_soc_jack_report
commit 8f157d4ff039e03e2ed4cb602eeed2fd4687a58f upstream.
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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/soc-jack.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c index c7b990abdbaa..2a528e73bad2 100644 --- a/sound/soc/soc-jack.c +++ b/sound/soc/soc-jack.c @@ -100,10 +100,9 @@ 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; |