diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index adfad4f..63751a2 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -537,6 +537,11 @@
 			pci_fixup_parent_subordinate_busnr(child, max);
 			/* Now we can scan all subordinate buses... */
 			max = pci_scan_child_bus(child);
+			/*
+			 * now fix it up again since we have found
+			 * the real value of max.
+			 */
+			pci_fixup_parent_subordinate_busnr(child, max);
 		} else {
 			/*
 			 * For CardBus bridges, we leave 4 bus numbers