Pawel Harlozinski 3c4cab81a1 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>
2019-12-21 10:42:01 +01:00
..
2016-10-07 20:19:31 -07:00
2016-01-20 09:59:27 +01:00
2019-08-25 10:51:18 +02:00