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Commit 28fae81f authored by Thierry Reding's avatar Thierry Reding
Browse files

gpu: host1x: 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>
parent 663a233e

drivers/gpu/host1x/dev.c

+8 −14
Original line number Diff line number Diff line
@@ -212,6 +212,11 @@ static struct platform_driver tegra_host1x_driver = { 
	.remove = host1x_remove,

};



static struct platform_driver * const drivers[] = {

	&tegra_host1x_driver,

	&tegra_mipi_driver,

};



static int __init tegra_host1x_init(void)

{

	int err;
@@ -220,28 +225,17 @@ static int __init tegra_host1x_init(void) 
	if (err < 0)

		return err;



	err = platform_driver_register(&tegra_host1x_driver);

	if (err < 0)

		goto unregister_bus;



	err = platform_driver_register(&tegra_mipi_driver);

	err = platform_register_drivers(drivers, ARRAY_SIZE(drivers));

	if (err < 0)

		goto unregister_host1x;



	return 0;



unregister_host1x:

	platform_driver_unregister(&tegra_host1x_driver);

unregister_bus:

		bus_unregister(&host1x_bus_type);



	return err;

}

module_init(tegra_host1x_init);



static void __exit tegra_host1x_exit(void)

{

	platform_driver_unregister(&tegra_mipi_driver);

	platform_driver_unregister(&tegra_host1x_driver);

	platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));

	bus_unregister(&host1x_bus_type);

}

module_exit(tegra_host1x_exit);