From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 7 Apr 2010 07:21:36 +0000 (-0700)
Subject: iwlwifi: fix scan races
X-Git-Tag: v2.6.34-rc6~33^2~18^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=88be026490ed89c2ffead81a52531fbac5507e01;p=pandora-kernel.git

iwlwifi: fix scan races

When an internal scan is started, nothing protects the
is_internal_short_scan variable which can cause crashes,
cf. https://bugzilla.kernel.org/show_bug.cgi?id=15667.
Fix this by making the short scan request use the mutex
for locking, which requires making the request go to a
work struct so that it can sleep.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---

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