Commit 9fbdc050 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Rafael J. Wysocki
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ACPI: PCI: Switch to use acpi_evaluate_dsm_typed() 



The acpi_evaluate_dsm_typed() provides a way to check the type of the
object evaluated by _DSM call. Use it instead of open coded variant.

Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 8a749fd1

drivers/acpi/pci_root.c

+3 −3
Original line number Diff line number Diff line
@@ -1055,9 +1055,9 @@ struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root, 
	 * exists and returns 0, we must preserve any PCI resource

	 * assignments made by firmware for this host bridge.

	 */

	obj = acpi_evaluate_dsm(ACPI_HANDLE(bus->bridge), &pci_acpi_dsm_guid, 1,

				DSM_PCI_PRESERVE_BOOT_CONFIG, NULL);

	if (obj && obj->type == ACPI_TYPE_INTEGER && obj->integer.value == 0)

	obj = acpi_evaluate_dsm_typed(ACPI_HANDLE(bus->bridge), &pci_acpi_dsm_guid, 1,

				      DSM_PCI_PRESERVE_BOOT_CONFIG, NULL, ACPI_TYPE_INTEGER);

	if (obj && obj->integer.value == 0)

		host_bridge->preserve_config = 1;

	ACPI_FREE(obj);