From 20d7090ffd4a30c66f3e2eb6741bb1e5baa56e8b Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Wed, 2 Dec 2015 17:19:55 +0100 Subject: [PATCH] gpio: mpc5200: Use platform_register/unregister_drivers() These new helpers simplify implementing multi-driver modules and properly handle failure to register one driver by unregistering all previously registered drivers. Signed-off-by: Thierry Reding Signed-off-by: Linus Walleij --- drivers/gpio/gpio-mpc5200.c | 17 +++++++---------- 1 file changed, 7 insertions(+), 10 deletions(-) diff --git a/drivers/gpio/gpio-mpc5200.c b/drivers/gpio/gpio-mpc5200.c index 4c54215..044bbbb7 100644 --- a/drivers/gpio/gpio-mpc5200.c +++ b/drivers/gpio/gpio-mpc5200.c @@ -360,15 +360,14 @@ static struct platform_driver mpc52xx_simple_gpiochip_driver = { .remove = mpc52xx_gpiochip_remove, }; +static struct platform_driver * const drivers[] = { + &mpc52xx_wkup_gpiochip_driver, + &mpc52xx_simple_gpiochip_driver, +}; + static int __init mpc52xx_gpio_init(void) { - if (platform_driver_register(&mpc52xx_wkup_gpiochip_driver)) - printk(KERN_ERR "Unable to register wakeup GPIO driver\n"); - - if (platform_driver_register(&mpc52xx_simple_gpiochip_driver)) - printk(KERN_ERR "Unable to register simple GPIO driver\n"); - - return 0; + return platform_register_drivers(drivers, ARRAY_SIZE(drivers)); } /* Make sure we get initialised before anyone else tries to use us */ @@ -376,9 +375,7 @@ subsys_initcall(mpc52xx_gpio_init); static void __exit mpc52xx_gpio_exit(void) { - platform_driver_unregister(&mpc52xx_wkup_gpiochip_driver); - - platform_driver_unregister(&mpc52xx_simple_gpiochip_driver); + platform_unregister_drivers(drivers, ARRAY_SIZE(drivers)); } module_exit(mpc52xx_gpio_exit); -- 2.7.4