From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Date: Thu, 24 Apr 2014 07:34:36 +0000 (+0300)
Subject: ASoC: Intel: Cancel hsw_notification_work before freeing the stream
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~177^2~1^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=de30a2ccb20d9baf5dac8a9c8ba8f0d9d5f4361e;p=pandora-kernel.git

ASoC: Intel: Cancel hsw_notification_work before freeing the stream

I suppose there is a possibility that hsw_notification_work() may run after
sst_hsw_stream_free() which can lead to a kernel crash since struct
sst_hsw_stream is freed at that point and
stream = container_of(work, struct sst_hsw_stream, notify_work) is not valid
when hsw_notification_work() is run.

Reported-by: Derek Basehore <dbasehore@chromium.org>
Reported-by: Wenkai Du <wenkai.du@intel.com>
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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