From 653a3538f865d26350727df25397bee2bacde773 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 15 Jul 2014 14:26:13 +0200
Subject: [PATCH] PM / sleep: fix freeze_ops NULL pointer dereferences

This patch fixes a NULL pointer dereference issue introduced by
commit 1f0b63866fc1 (ACPI / PM: Hold ACPI scan lock over the "freeze"
sleep state).

Fixes: 1f0b63866fc1 (ACPI / PM: Hold ACPI scan lock over the "freeze" sleep state)
Link: http://marc.info/?l=linux-pm&m=140541182017443&w=2
Reported-and-tested-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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