powerpc/pci: Add missing hookup to pci_slot

Add missing hookup to existing pci_slot when building the pci_dev from
scratch off the Open Firmware device-tree
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/kernel/pci_of_scan.c

@@ -123,6 +123,7 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
 {
 	struct pci_dev *dev;
 	const char *type;
+	struct pci_slot *slot;
 
 	dev = alloc_pci_dev();
 	if (!dev)
@@ -142,6 +143,10 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
 	dev->needs_freset = 0;		/* pcie fundamental reset required */
 	set_pcie_port_type(dev);
 
+	list_for_each_entry(slot, &dev->bus->slots, list)
+		if (PCI_SLOT(dev->devfn) == slot->number)
+			dev->slot = slot;
+
 	dev->vendor = get_int_prop(node, "vendor-id", 0xffff);
 	dev->device = get_int_prop(node, "device-id", 0xffff);
 	dev->subsystem_vendor = get_int_prop(node, "subsystem-vendor-id", 0);