serial: Samsung: Use of_match_ptr() macro

This eliminates having an #ifdef returning NULL for the case
when OF is disabled.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index 96ae08f..0684529 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -1729,8 +1729,6 @@
 	{},
 };
 MODULE_DEVICE_TABLE(of, s3c24xx_uart_dt_match);
-#else
-#define s3c24xx_uart_dt_match NULL
 #endif
 
 static struct platform_driver samsung_serial_driver = {
@@ -1741,7 +1739,7 @@
 		.name	= "samsung-uart",
 		.owner	= THIS_MODULE,
 		.pm	= SERIAL_SAMSUNG_PM_OPS,
-		.of_match_table	= s3c24xx_uart_dt_match,
+		.of_match_table	= of_match_ptr(s3c24xx_uart_dt_match),
 	},
 };