diff --git a/[refs] b/[refs]
index d02bec5cbac1..4052bbb60fed 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f2e97df669d32f74152336f46e4e0e328b993c57
+refs/heads/master: b81831c69afb82c0545d3de729290fab4e50d429
diff --git a/trunk/drivers/serial/uartlite.c b/trunk/drivers/serial/uartlite.c
index db8607e3d531..f5051cf1a0c8 100644
--- a/trunk/drivers/serial/uartlite.c
+++ b/trunk/drivers/serial/uartlite.c
@@ -256,7 +256,7 @@ static void ulite_release_port(struct uart_port *port)
 {
 	release_mem_region(port->mapbase, ULITE_REGION);
 	iounmap(port->membase);
-	port->membase = 0;
+	port->membase = NULL;
 }
 
 static int ulite_request_port(struct uart_port *port)
@@ -438,7 +438,7 @@ static int __devinit ulite_probe(struct platform_device *pdev)
 	port->iotype	= UPIO_MEM;
 	port->iobase	= 1; /* mark port in use */
 	port->mapbase	= res->start;
-	port->membase	= 0;
+	port->membase	= NULL;
 	port->ops	= &ulite_ops;
 	port->irq	= res2->start;
 	port->flags	= UPF_BOOT_AUTOCONF;
@@ -462,7 +462,7 @@ static int ulite_remove(struct platform_device *pdev)
 		uart_remove_one_port(&ulite_uart_driver, port);
 
 	/* mark port as free */
-	port->membase = 0;
+	port->membase = NULL;
 
 	return 0;
 }