From 61679fe153b2b9ea5b5e2ab93305419e85e99a9d Mon Sep 17 00:00:00 2001
From: Martin Peres <martin.peres@labri.fr>
Date: Fri, 14 Mar 2014 00:26:52 +0100
Subject: [PATCH] drm/nouveau/pm/fan: drop the fan lock in fan_update() before
 rescheduling
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This should fix a deadlock that has been reported to us where fan_update()
would hold the fan lock and try to grab the alarm_program_lock to reschedule
an update. On an other CPU, the alarm_program_lock would have been taken
before calling fan_update(), leading to a deadlock.

We should Cc: <stable@vger.kernel.org> # 3.9+

Reported-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Tested-by: Timothée Ravier <tim@siosm.fr>
Tested-by: Boris Fersing (IRC nick fersingb, no public email address)
Signed-off-by: Martin Peres <martin.peres@free.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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