From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 27 Jun 2011 13:06:42 +0000 (-0700)
Subject: iwlagn: verify mutex held for sync commands
X-Git-Tag: v3.1-rc1~316^2~189^2^2~48
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=98a648e10a3c4eb30f8043281345506e17ace007;p=pandora-kernel.git

iwlagn: verify mutex held for sync commands

Emmanuel noticed that there's no explicit checking
that prevents the driver from attempting to issue
multiple synchronous commands at the same time and
wrote a patch to check. However, his patch warns
only if a collision actually happened, an unlikely
thing since the driver mutex should be held for
synchronous command submissions.

So instead of checking that a collision happened
add a check that the mutex is held which ensures
that collisions can't happen.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
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