rtc: ds1685: Use module_platform_driver
authorVaishali Thakkar <vthakkar1994@gmail.com>
Tue, 7 Jul 2015 05:46:14 +0000 (11:16 +0530)
committerAlexandre Belloni <alexandre.belloni@free-electrons.com>
Sat, 5 Sep 2015 11:19:05 +0000 (13:19 +0200)
Use module_platform_driver for drivers whose init and exit functions
only register and unregister, respectively.

A simplified version of the Coccinelle semantic patch that performs
this transformation is as follows:

@a@
identifier f, x;
@@
-static f(...) { return platform_driver_register(&x); }

@b depends on a@
identifier e, a.x;
@@
-static e(...) { platform_driver_unregister(&x); }

@c depends on a && b@
identifier a.f;
declarer name module_init;
@@
-module_init(f);

@d depends on a && b && c@
identifier b.e, a.x;
declarer name module_exit;
declarer name module_platform_driver;
@@
-module_exit(e);
+module_platform_driver(x);

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
drivers/rtc/rtc-ds1685.c

index 818a3635a8c8675c2c7f750d19671b561bbd6835..05a51ef52703271dc195ec4fad27a498adcb5578 100644 (file)
@@ -2145,27 +2145,7 @@ static struct platform_driver ds1685_rtc_driver = {
        .probe          = ds1685_rtc_probe,
        .remove         = ds1685_rtc_remove,
 };
-
-/**
- * ds1685_rtc_init - rtc module init.
- */
-static int __init
-ds1685_rtc_init(void)
-{
-       return platform_driver_register(&ds1685_rtc_driver);
-}
-
-/**
- * ds1685_rtc_exit - rtc module exit.
- */
-static void __exit
-ds1685_rtc_exit(void)
-{
-       platform_driver_unregister(&ds1685_rtc_driver);
-}
-
-module_init(ds1685_rtc_init);
-module_exit(ds1685_rtc_exit);
+module_platform_driver(ds1685_rtc_driver);
 /* ----------------------------------------------------------------------- */