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Commit 20d7090f authored by Thierry Reding's avatar Thierry Reding Committed by Linus Walleij
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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: default avatarThierry Reding <treding@nvidia.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 12b61c9d

drivers/gpio/gpio-mpc5200.c

+7 −10
Original line number Diff line number Diff line
@@ -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);