rtc: rtc-ds1302: use module_platform_driver_probe()

Use module_platform_driver_probe() macro which makes the code smaller and
simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/rtc/rtc-ds1302.c

@@ -252,18 +252,7 @@ static struct platform_driver ds1302_platform_driver = {
 	.remove		= __exit_p(ds1302_rtc_remove),
 };
 
-static int __init ds1302_rtc_init(void)
-{
-	return platform_driver_probe(&ds1302_platform_driver, ds1302_rtc_probe);
-}
-
-static void __exit ds1302_rtc_exit(void)
-{
-	platform_driver_unregister(&ds1302_platform_driver);
-}
-
-module_init(ds1302_rtc_init);
-module_exit(ds1302_rtc_exit);
+module_platform_driver_probe(ds1302_platform_driver, ds1302_rtc_probe);
 
 MODULE_DESCRIPTION("Dallas DS1302 RTC driver");
 MODULE_VERSION(DRV_VERSION);