commit 952c63e9512b63220886105cfc791507046fa39a
author Jiang Liu <jiang.liu@huawei.com> Sat Jun 29 00:24:38 2013 +0800
committer Rafael J. Wysocki <rafael.j.wysocki@intel.com> Mon Jul 15 01:33:10 2013 +0200
tree bf3bd0592ea0fac74418fe16b8a4125e2db799ea
parent 472d963befe28b8614ea2789757b27536c8d79eb

ACPI: introduce helper function acpi_has_method()

Introduce helper function acpi_has_method() and use it in a number
of places to simplify code.

[rjw: Changelog]
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/resource.c

diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index 3322b47..b7201fc 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -505,14 +505,12 @@
 			   void *preproc_data)
 {
 	struct res_proc_context c;
-	acpi_handle not_used;
 	acpi_status status;
 
 	if (!adev || !adev->handle || !list_empty(list))
 		return -EINVAL;
 
-	status = acpi_get_handle(adev->handle, METHOD_NAME__CRS, &not_used);
-	if (ACPI_FAILURE(status))
+	if (!acpi_has_method(adev->handle, METHOD_NAME__CRS))
 		return 0;
 
 	c.list = list;