1 files changed, 7 insertions, 2 deletions

diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index b3899cfcab6b..ef95d12fb32c 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -219,8 +219,13 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
                 newfunc->flags |= FUNC_HAS_DCK;
 
         status = acpi_evaluate_integer(handle, "_SUN", NULL, &sun);
-        if (ACPI_FAILURE(status))
-                sun = -1;
+        if (ACPI_FAILURE(status)) {
+                /*
+                 * use the count of the number of slots we've found
+                 * for the number of the slot
+                 */
+                sun = bridge->nr_slots+1;
+        }
 
         /* search for objects that share the same slot */
         for (slot = bridge->slots; slot; slot = slot->next)