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path: root/drivers/acpi/pci_slot.c
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Diffstat (limited to 'drivers/acpi/pci_slot.c')
-rw-r--r--drivers/acpi/pci_slot.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c
index 033d1179bdb5..d678a180ca2a 100644
--- a/drivers/acpi/pci_slot.c
+++ b/drivers/acpi/pci_slot.c
@@ -159,12 +159,16 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
return AE_OK;
}
-void acpi_pci_slot_enumerate(struct pci_bus *bus, acpi_handle handle)
+void acpi_pci_slot_enumerate(struct pci_bus *bus)
{
- mutex_lock(&slot_list_lock);
- acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, 1,
- register_slot, NULL, bus, NULL);
- mutex_unlock(&slot_list_lock);
+ acpi_handle handle = ACPI_HANDLE(bus->bridge);
+
+ if (handle) {
+ mutex_lock(&slot_list_lock);
+ acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, 1,
+ register_slot, NULL, bus, NULL);
+ mutex_unlock(&slot_list_lock);
+ }
}
void acpi_pci_slot_remove(struct pci_bus *bus)