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authorBjorn Helgaas <bhelgaas@google.com>2013-09-05 23:07:41 +0200
committerBjorn Helgaas <bhelgaas@google.com>2013-09-24 01:40:46 +0200
commit4ffe6e54b0ce259d254e7740a7a4a99dad14a484 (patch)
tree2b2004a308020093e6a9b3a5642951ce63351764 /drivers/acpi
parentPCI/ACPI: Name _OSC #defines more consistently (diff)
downloadlinux-4ffe6e54b0ce259d254e7740a7a4a99dad14a484.tar.xz
linux-4ffe6e54b0ce259d254e7740a7a4a99dad14a484.zip
PCI/ACPI: Drop unnecessary _OSC existence tests
There's no need to check whether _OSC exists here; we eventually call acpi_evaluate_object(..., "_OSC", ...), and that will fail gracefully if _OSC doesn't exist. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/pci_root.c11
1 files changed, 1 insertions, 10 deletions
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 28dd55509789..cc87cc4fea0e 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -180,11 +180,7 @@ static acpi_status acpi_pci_query_osc(struct acpi_pci_root *root,
static acpi_status acpi_pci_osc_support(struct acpi_pci_root *root, u32 flags)
{
acpi_status status;
- acpi_handle tmp;
- status = acpi_get_handle(root->device->handle, "_OSC", &tmp);
- if (ACPI_FAILURE(status))
- return status;
mutex_lock(&osc_lock);
status = acpi_pci_query_osc(root, flags, NULL);
mutex_unlock(&osc_lock);
@@ -316,9 +312,8 @@ EXPORT_SYMBOL_GPL(acpi_get_pci_dev);
acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 *mask, u32 req)
{
struct acpi_pci_root *root;
- acpi_status status;
+ acpi_status status = AE_OK;
u32 ctrl, capbuf[3];
- acpi_handle tmp;
if (!mask)
return AE_BAD_PARAMETER;
@@ -331,10 +326,6 @@ acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 *mask, u32 req)
if (!root)
return AE_NOT_EXIST;
- status = acpi_get_handle(handle, "_OSC", &tmp);
- if (ACPI_FAILURE(status))
- return status;
-
mutex_lock(&osc_lock);
*mask = ctrl | root->osc_control_set;