PCI: rpaphp: refactor tail call to rpaphp_register_slot()

Eliminate the tail call to rpaphp_register_slot() 
by placing it in the caller. This will help later
dis-entanglement.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Cc: John Rose <johnrose@austin.ibm.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/pci/hotplug/rpaphp_core.c

@@ -319,6 +319,9 @@ int rpaphp_add_slot(struct device_node *dn)
 				indexes[i + 1], name, type);
 
 		retval = rpaphp_register_pci_slot(slot);
+		if (!retval)
+			retval = rpaphp_register_slot(slot);
+
 		if (retval)
 			dealloc_slot_struct(slot);
 

drivers/pci/hotplug/rpaphp_pci.c

@@ -136,6 +136,6 @@ int rpaphp_register_pci_slot(struct slot *slot)
 		}
 	}
 
-	return rpaphp_register_slot(slot);
+	return 0;
 }