[PATCH] SHPC PCI Hotplug: remove some useless casts

Remove a useless cast: pci_add_new_bus returns a struct pci_bus*, so no need
to cast.

drivers/pci/hotplug/shpchp_pci.c

@@ -68,7 +68,7 @@ int shpchp_configure_device (struct controller* ctrl, struct pci_func* func)
 
 	if (func->pci_dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
 		pci_read_config_byte(func->pci_dev, PCI_SECONDARY_BUS, &bus);
-		child = (struct pci_bus*) pci_add_new_bus(func->pci_dev->bus, (func->pci_dev), bus);
+		child = pci_add_new_bus(func->pci_dev->bus, (func->pci_dev), bus);
 		pci_do_scan_bus(child);
 
 	}