pci_dev_b to list_for_each_entry:

@@ -96,15 +96,13 @@
 
 static void __init pcibios_allocate_bus_resources(struct list_head *bus_list)
 {
-	struct list_head *ln;
 	struct pci_bus *bus;
 	struct pci_dev *dev;
 	int idx;
 	struct resource *r, *pr;
 
 	/* Depth-First Search on bus tree */
-	list_for_each(ln, bus_list) {
-		bus = pci_bus_b(ln);
+	list_for_each_entry(bus, bus_list, node) {
 		if ((dev = bus->self)) {
 			for (idx = PCI_BRIDGE_RESOURCES; idx < PCI_NUM_RESOURCES; idx++) {
 				r = &dev->resource[idx];