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Commit 92a513b7 authored by Thierry Reding's avatar Thierry Reding Committed by Mark Brown
Browse files

regulator: wm831x-ldo: 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 avatarMark Brown <broonie@kernel.org>
parent 55e03e9c

drivers/regulator/wm831x-ldo.c

+8 −19
Original line number Diff line number Diff line
@@ -653,32 +653,21 @@ static struct platform_driver wm831x_alive_ldo_driver = { 
	},

};



static struct platform_driver * const drivers[] = {

	&wm831x_gp_ldo_driver,

	&wm831x_aldo_driver,

	&wm831x_alive_ldo_driver,

};



static int __init wm831x_ldo_init(void)

{

	int ret;



	ret = platform_driver_register(&wm831x_gp_ldo_driver);

	if (ret != 0)

		pr_err("Failed to register WM831x GP LDO driver: %d\n", ret);



	ret = platform_driver_register(&wm831x_aldo_driver);

	if (ret != 0)

		pr_err("Failed to register WM831x ALDO driver: %d\n", ret);



	ret = platform_driver_register(&wm831x_alive_ldo_driver);

	if (ret != 0)

		pr_err("Failed to register WM831x alive LDO driver: %d\n",

		       ret);



	return 0;

	return platform_register_drivers(drivers, ARRAY_SIZE(drivers));

}

subsys_initcall(wm831x_ldo_init);



static void __exit wm831x_ldo_exit(void)

{

	platform_driver_unregister(&wm831x_alive_ldo_driver);

	platform_driver_unregister(&wm831x_aldo_driver);

	platform_driver_unregister(&wm831x_gp_ldo_driver);

	platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));

}

module_exit(wm831x_ldo_exit);