parisc/PCI: dino: use pci_create_bus() instead of pci_scan_bus_parented()

No functional change here; just converting from pci_scan_bus_parented()
to pci_create_bus() to make a future patch simpler.

CC: linux-parisc@vger.kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

drivers/parisc/dino.c

@@ -1007,22 +1007,24 @@ static int __init dino_probe(struct parisc_device *dev)
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
 	*/
-	dino_dev->hba.hba_bus = bus = pci_scan_bus_parented(&dev->dev,
+	dino_dev->hba.hba_bus = bus = pci_create_bus(&dev->dev,
 			 dino_current_bus, &dino_cfg_ops, NULL);
+	if (!bus) {
+		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
+		       dev_name(&dev->dev), dino_current_bus);
+		/* increment the bus number in case of duplicates */
+		dino_current_bus++;
+		return 0;
+	}
+
+	bus->subordinate = pci_scan_child_bus(bus);
 
-	if(bus) {
 	/* This code *depends* on scanning being single threaded
 	 * if it isn't, this global bus number count will fail
 	 */
 	dino_current_bus = bus->subordinate + 1;
 	pci_bus_assign_resources(bus);
 	pci_bus_add_devices(bus);
-	} else {
-		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
-		       dev_name(&dev->dev), dino_current_bus);
-		/* increment the bus number in case of duplicates */
-		dino_current_bus++;
-	}
 	return 0;
 }