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 19:56:14 +0100 |
| commit | 9ae0611f0c55178aea77f39ee07d539556d7c6eb (patch) | |
| tree | be5b1a4351a5a2f47ad5a8314ca3d3a5601d981c | |
| parent | 560025a0b565b6ae2d98ff10d2030eeb798e9fb7 (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>
| -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 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; |