PCI: Use correct type when freeing bus resource list

Should use struct pci_bus_resource instead of struct pci_host_bridge_window

Commit 45ca9e9730 ("PCI: add helpers for building PCI bus resource lists")
added pci_free_resource_list() and used it in pci_bus_remove_resources().
Later it was also used for host bridge aperture lists, which was fine until
commit 0efd5aab41 ("PCI: add struct pci_host_bridge_window with CPU/bus
address offset").  That commit added offset information, so we needed a
struct pci_host_bridge_window that was separate from struct
pci_bus_resource.

Commit 0efd5aab41 should have split the host bridge aperture users of
pci_free_resource_list() from the pci_bus_resource user
(pci_bus_remove_resources()), but it did not.

[bhelgaas: changelog -- 0efd5aab41 was mine, so this is all my fault]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index 4b0970b..6241fd0 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -87,11 +87,15 @@
 void pci_bus_remove_resources(struct pci_bus *bus)
 {
 	int i;
+	struct pci_bus_resource *bus_res, *tmp;
 
 	for (i = 0; i < PCI_BRIDGE_RESOURCE_NUM; i++)
 		bus->resource[i] = NULL;
 
-	pci_free_resource_list(&bus->resources);
+	list_for_each_entry_safe(bus_res, tmp, &bus->resources, list) {
+		list_del(&bus_res->list);
+		kfree(bus_res);
+	}
 }
 
 /**