tty: use of_match_ptr() for of_match_table entry

Use the new of_match_ptr() macro for the of_match_table
pointer entry to avoid having to #dfine match NULL

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/drivers/tty/serial/altera_jtaguart.c b/drivers/tty/serial/altera_jtaguart.c
index 60e049b..2075200 100644
--- a/drivers/tty/serial/altera_jtaguart.c
+++ b/drivers/tty/serial/altera_jtaguart.c
@@ -472,8 +472,6 @@
 	{},
 };
 MODULE_DEVICE_TABLE(of, altera_jtaguart_match);
-#else
-#define altera_jtaguart_match NULL
 #endif /* CONFIG_OF */
 
 static struct platform_driver altera_jtaguart_platform_driver = {
@@ -482,7 +480,7 @@
 	.driver	= {
 		.name		= DRV_NAME,
 		.owner		= THIS_MODULE,
-		.of_match_table	= altera_jtaguart_match,
+		.of_match_table	= of_match_ptr(altera_jtaguart_match),
 	},
 };
 
diff --git a/drivers/tty/serial/altera_uart.c b/drivers/tty/serial/altera_uart.c
index 50bc5a5..0abd31d 100644
--- a/drivers/tty/serial/altera_uart.c
+++ b/drivers/tty/serial/altera_uart.c
@@ -616,8 +616,6 @@
 	{},
 };
 MODULE_DEVICE_TABLE(of, altera_uart_match);
-#else
-#define altera_uart_match NULL
 #endif /* CONFIG_OF */
 
 static struct platform_driver altera_uart_platform_driver = {
@@ -626,7 +624,7 @@
 	.driver	= {
 		.name		= DRV_NAME,
 		.owner		= THIS_MODULE,
-		.of_match_table	= altera_uart_match,
+		.of_match_table	= of_match_ptr(altera_uart_match),
 	},
 };
 
diff --git a/drivers/tty/serial/uartlite.c b/drivers/tty/serial/uartlite.c
index 8af1ed8..0aed022 100644
--- a/drivers/tty/serial/uartlite.c
+++ b/drivers/tty/serial/uartlite.c
@@ -568,8 +568,6 @@
 	{}
 };
 MODULE_DEVICE_TABLE(of, ulite_of_match);
-#else /* CONFIG_OF */
-#define ulite_of_match NULL
 #endif /* CONFIG_OF */
 
 static int __devinit ulite_probe(struct platform_device *pdev)
@@ -609,7 +607,7 @@
 	.driver = {
 		.owner = THIS_MODULE,
 		.name  = "uartlite",
-		.of_match_table = ulite_of_match,
+		.of_match_table = of_match_ptr(ulite_of_match),
 	},
 };