PCI: use dev_printk for PCI bus resource mssages

Since pci_bus has a struct device, use dev_printk directly instead
of faking it by hand.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 09e2c3c..7046089 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -536,9 +536,8 @@
                 if (!res)
                         continue;
 
-		printk(KERN_DEBUG "pci %04x:%02x: bus resource %d %s %pR\n",
-		       pci_domain_nr(bus), bus->number, i,
-		       (res->flags & IORESOURCE_IO) ? "io: " : "mem:", res);
+		dev_printk(KERN_DEBUG, &bus->dev, "resource %d %s %pR\n", i,
+			   (res->flags & IORESOURCE_IO) ? "io: " : "mem:", res);
         }
 }