From ddc150f7a33ae0c9cb16eaac3641abc00f56316f Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Fri, 16 Nov 2012 02:46:28 +0100
Subject: [PATCH] ACPI / PM: Add check preventing transitioning to non-D0 state
 from D3.

No power transitioning from D3 state up to a non-D0 state is allowed
so make acpi_device_set_power() fail and complain if such a transition
is attempted.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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