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Commit 55e03e9c authored by Thierry Reding's avatar Thierry Reding Committed by Mark Brown
Browse files

regulator: wm831x-dcdc: 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 8005c49d

drivers/regulator/wm831x-dcdc.c

+9 −22
Original line number Original line Diff line number Diff line
@@ -884,35 +884,22 @@ static struct platform_driver wm831x_epe_driver = { 
	},

	},

};

};





static struct platform_driver * const drivers[] = {

	&wm831x_buckv_driver,

	&wm831x_buckp_driver,

	&wm831x_boostp_driver,

	&wm831x_epe_driver,

};



static int __init wm831x_dcdc_init(void)

static int __init wm831x_dcdc_init(void)

{

{

	int ret;

	return platform_register_drivers(drivers, ARRAY_SIZE(drivers));

	ret = platform_driver_register(&wm831x_buckv_driver);

	if (ret != 0)

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



	ret = platform_driver_register(&wm831x_buckp_driver);

	if (ret != 0)

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



	ret = platform_driver_register(&wm831x_boostp_driver);

	if (ret != 0)

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



	ret = platform_driver_register(&wm831x_epe_driver);

	if (ret != 0)

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



	return 0;

}

}

subsys_initcall(wm831x_dcdc_init);

subsys_initcall(wm831x_dcdc_init);





static void __exit wm831x_dcdc_exit(void)

static void __exit wm831x_dcdc_exit(void)

{

{

	platform_driver_unregister(&wm831x_epe_driver);

	platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));

	platform_driver_unregister(&wm831x_boostp_driver);

	platform_driver_unregister(&wm831x_buckp_driver);

	platform_driver_unregister(&wm831x_buckv_driver);

}

}

module_exit(wm831x_dcdc_exit);

module_exit(wm831x_dcdc_exit);