drivers: uio_pdrv_genirq: 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>

drivers/uio/uio_pdrv_genirq.c

@@ -271,11 +271,8 @@ static struct of_device_id uio_of_genirq_match[] = {
 	{ /* Sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, uio_of_genirq_match);
-
 module_param_string(of_id, uio_of_genirq_match[0].compatible, 128, 0);
 MODULE_PARM_DESC(of_id, "Openfirmware id of the device to be handled by uio");
-#else
-# define uio_of_genirq_match NULL
 #endif
 
 static struct platform_driver uio_pdrv_genirq = {
@@ -285,7 +282,7 @@ static struct platform_driver uio_pdrv_genirq = {
 		.name = DRIVER_NAME,
 		.owner = THIS_MODULE,
 		.pm = &uio_pdrv_genirq_dev_pm_ops,
-		.of_match_table = uio_of_genirq_match,
+		.of_match_table = of_match_ptr(uio_of_genirq_match),
 	},
 };