From 50e66c7ed8a1cd7e933628f9f5cf2617394adf5a Mon Sep 17 00:00:00 2001
From: Eduardo Valentin <eduardo.valentin@ti.com>
Date: Thu, 15 Aug 2013 10:54:46 -0400
Subject: [PATCH] drivers: thermal: add check when unregistering cpu cooling

This patch avoids NULL pointer accesses while unregistering
cpu cooling devices, in case a NULL pointer is received.

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
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