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path: root/drivers/acpi/pci_root.c
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Diffstat (limited to 'drivers/acpi/pci_root.c')
-rw-r--r--drivers/acpi/pci_root.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index ec54014c321c..72a2c98bc429 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -573,8 +573,15 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
573 OSC_CLOCK_PWR_CAPABILITY_SUPPORT; 573 OSC_CLOCK_PWR_CAPABILITY_SUPPORT;
574 if (pci_msi_enabled()) 574 if (pci_msi_enabled())
575 flags |= OSC_MSI_SUPPORT; 575 flags |= OSC_MSI_SUPPORT;
576 if (flags != base_flags) 576 if (flags != base_flags) {
577 acpi_pci_osc_support(root, flags); 577 status = acpi_pci_osc_support(root, flags);
578 if (ACPI_FAILURE(status)) {
579 dev_info(root->bus->bridge, "ACPI _OSC support "
580 "notification failed, disabling PCIe ASPM\n");
581 pcie_no_aspm();
582 flags = base_flags;
583 }
584 }
578 585
579 if (!pcie_ports_disabled 586 if (!pcie_ports_disabled
580 && (flags & ACPI_PCIE_REQ_SUPPORT) == ACPI_PCIE_REQ_SUPPORT) { 587 && (flags & ACPI_PCIE_REQ_SUPPORT) == ACPI_PCIE_REQ_SUPPORT) {