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drm/omap: Use platform_register/unregister_drivers()

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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 <treding@nvidia.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Thierry Reding
2015-12-02 17:23:31 +01:00
committed by Tomi Valkeinen
parent d4182e35aa
commit e1c49bdcdb
1 changed files with 7 additions and 19 deletions
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26
drivers/gpu/drm/omapdrm/omap_drv.c
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@@ -928,35 +928,23 @@ static struct platform_driver pdev = {
.remove = pdev_remove, .remove = pdev_remove,
}; };
static struct platform_driver * const drivers[] = {
&omap_dmm_driver,
&pdev,
};
static int __init omap_drm_init(void) static int __init omap_drm_init(void)
{ {
int r;
DBG("init"); DBG("init");
r = platform_driver_register(&omap_dmm_driver); return platform_register_drivers(drivers, ARRAY_SIZE(drivers));
if (r) {
pr_err("DMM driver registration failed\n");
return r;
}
r = platform_driver_register(&pdev);
if (r) {
pr_err("omapdrm driver registration failed\n");
platform_driver_unregister(&omap_dmm_driver);
return r;
}
return 0;
} }
static void __exit omap_drm_fini(void) static void __exit omap_drm_fini(void)
{ {
DBG("fini"); DBG("fini");
platform_driver_unregister(&pdev); platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
platform_driver_unregister(&omap_dmm_driver);
} }
/* need late_initcall() so we load after dss_driver's are loaded */ /* need late_initcall() so we load after dss_driver's are loaded */