frv/PCI: Use list_for_each_entry() for bus->devices traversal

Replace open-coded list traversal with list_for_each_entry().

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
CC: David Howells <dhowells@redhat.com>

arch/frv/mb93090-mb00/pci-vdk.c

@@ -330,10 +330,8 @@ void __init pcibios_fixup_bus(struct pci_bus *bus)
 	pci_read_bridge_bases(bus);
 
 	if (bus->number == 0) {
-		struct list_head *ln;
 		struct pci_dev *dev;
-		for (ln=bus->devices.next; ln != &bus->devices; ln=ln->next) {
+		list_for_each_entry(dev, &bus->devices, bus_list) {
-			dev = pci_dev_b(ln);
 			if (dev->devfn == 0) {
 				dev->resource[0].start = 0;
 				dev->resource[0].end = 0;