From: Rafael J. Wysocki <rjw@sisk.pl>
Date: Thu, 6 Jan 2011 22:40:00 +0000 (+0100)
Subject: ACPI: Always check if _PRW is present before trying to evaluate it
X-Git-Tag: v2.6.38-rc1~68^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=86e4e20e8a5301ff7104a4f40f35fd5bee408186;p=pandora-kernel.git

ACPI: Always check if _PRW is present before trying to evaluate it

Before evaluating _PRW for devices that are reported as inactive or
not present by their _STA control methods we should check if those
methods are actually present (otherwise the evaulation of _PRW will
obviously fail and a scary message will be printed unnecessarily).

Reported-by: Andreas Mohr <andi@lisas.de>
Reported-by: Maciej Rutecki <maciej.rutecki@gmail.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
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