PCI: pcie AER: don't check _OSC when acpi is disabled

[PATCH] pcie AER: don't check _OSC when acpi is disabled

when acpi=off or pci=noacpi, get warning

AER service couldn't init device 0000:00:0a.0:pcie01 - no _OSC support
AER service couldn't init device 0000:00:0e.0:pcie01 - no _OSC support
AER service couldn't init device 0000:00:0f.0:pcie01 - no _OSC support
AER service couldn't init device 0000:80:0b.0:pcie01 - no _OSC support
AER service couldn't init device 0000:80:0e.0:pcie01 - no _OSC support
AER service couldn't init device 0000:80:0f.0:pcie01 - no _OSC support

so don't check _OSC in aer_osc_setup
Signed-off-by: NYinghai Lu <yinghai.lu@sun.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/pci/pcie/aer/aerdrv_acpi.c

@@ -33,6 +33,9 @@ int aer_osc_setup(struct pcie_device *pciedev)
 	struct pci_dev *pdev = pciedev->port;
 	acpi_handle handle = 0;
 
+	if (acpi_pci_disabled)
+		return -1;
+
 	/* Find root host bridge */
 	while (pdev->bus && pdev->bus->self)
 		pdev = pdev->bus->self;