tree 15824cee379a379512c910a7af3f1497837052eb
parent 2a3ca1429589521df49fd9348fc382c34b57a88f
author Zhang Rui <rui.zhang@intel.com> 1378168320 +0800
committer Rafael J. Wysocki <rafael.j.wysocki@intel.com> 1379979475 +0200

nouveau_acpi: convert acpi_get_handle() to acpi_has_method()

acpi_has_method() is a new ACPI API introduced to check
the existence of an ACPI control method.

It can be used to replace acpi_get_handle() in the case that
1. the calling function doesn't need the ACPI handle of the control method.
and
2. the calling function doesn't care the reason why the method is unavailable.

Convert acpi_get_handle() to acpi_has_method()
in drivers/gpu/drm/nouveau/nouveau_acpi.c in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Ben Skeggs <bskeggs@redhat.com>
CC: Dave Airlie <airlied@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>