Merge branch 'x86/mm' into core/percpu

Conflicts:
	arch/x86/mm/fault.c

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index f09b1010d477..803d9ddd6e75 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -266,6 +266,8 @@ static int detect_ejectable_slots(struct pci_bus *pbus)
         int found = acpi_pci_detect_ejectable(pbus);
         if (!found) {
                 acpi_handle bridge_handle = acpi_pci_get_bridge_handle(pbus);
+                if (!bridge_handle)
+                        return 0;
                 acpi_walk_namespace(ACPI_TYPE_DEVICE, bridge_handle, (u32)1,
                                     is_pci_dock_device, (void *)&found, NULL);
         }