ACPI: Always check if _PRW is present before trying to evaluate it
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 <dbd122ef7b6a09ffecf5db9c9296320f3c94e707@lisas.de>
Reported-by: Maciej Rutecki <b9fc5ee32e9bcd79c24fe827a77b4d80fdc0a8e2@gmail.com>
Signed-off-by: Rafael J. Wysocki <a11f87183a953ab11f50fbafff689c5a7fa3506c@sisk.pl>
Signed-off-by: Len Brown <b060cfa1096cc6e8be83699ddb4ed8a77dd63af5@intel.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs