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authorZhang Rui <rui.zhang@intel.com>2013-09-03 08:32:01 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-09-24 01:37:55 +0200
commit2fd6f9c302153ad136455a6bfb36afa97f631e41 (patch)
tree1379483f9af39f95b698a04ddb3fb36c335e8fb9 /drivers/pci
parent187b5b5d520c2318a1f88fb8d8913a9d7fbf7d92 (diff)
downloadlinux-2fd6f9c302153ad136455a6bfb36afa97f631e41.tar.bz2
acpi_pcihp: 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/pci/hotplug/acpi_pcihp.c in this patch. Signed-off-by: Zhang Rui <rui.zhang@intel.com> CC: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/hotplug/acpi_pcihp.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c
index 2a47e82821da..5440131cd4ee 100644
--- a/drivers/pci/hotplug/acpi_pcihp.c
+++ b/drivers/pci/hotplug/acpi_pcihp.c
@@ -411,13 +411,10 @@ EXPORT_SYMBOL(acpi_get_hp_hw_control_from_firmware);
static int pcihp_is_ejectable(acpi_handle handle)
{
acpi_status status;
- acpi_handle tmp;
unsigned long long removable;
- status = acpi_get_handle(handle, "_ADR", &tmp);
- if (ACPI_FAILURE(status))
+ if (!acpi_has_method(handle, "_ADR"))
return 0;
- status = acpi_get_handle(handle, "_EJ0", &tmp);
- if (ACPI_SUCCESS(status))
+ if (acpi_has_method(handle, "_EJ0"))
return 1;
status = acpi_evaluate_integer(handle, "_RMV", NULL, &removable);
if (ACPI_SUCCESS(status) && removable)