diff --git a/[refs] b/[refs]
index 308c6bbf4aaf..ea73eb57e04b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 0918472ceeffad234df5589e45b646a94476f835
+refs/heads/master: b1a98b695b4efe10067d0e1cb5b66146a4e517bf
diff --git a/trunk/drivers/pci/probe.c b/trunk/drivers/pci/probe.c
index bafb3c3d4a89..f03ed96533d5 100644
--- a/trunk/drivers/pci/probe.c
+++ b/trunk/drivers/pci/probe.c
@@ -724,12 +724,14 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max,
 		pci_write_config_word(dev, PCI_STATUS, 0xffff);
 
 		/* Prevent assigning a bus number that already exists.
-		 * This can happen when a bridge is hot-plugged */
-		if (pci_find_bus(pci_domain_nr(bus), max+1))
-			goto out;
-		child = pci_add_new_bus(bus, dev, ++max);
-		if (!child)
-			goto out;
+		 * This can happen when a bridge is hot-plugged, so in
+		 * this case we only re-scan this bus. */
+		child = pci_find_bus(pci_domain_nr(bus), max+1);
+		if (!child) {
+			child = pci_add_new_bus(bus, dev, ++max);
+			if (!child)
+				goto out;
+		}
 		buses = (buses & 0xff000000)
 		      | ((unsigned int)(child->primary)     <<  0)
 		      | ((unsigned int)(child->secondary)   <<  8)