[PATCH] drm/armada: Use platform_register/unregister_drivers()

[Thierry Reding]

From: Thierry Reding <tred...@nvidia.com>

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 at nvidia.com>
---
 drivers/gpu/drm/armada/armada_drv.c | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/armada/armada_drv.c 
b/drivers/gpu/drm/armada/armada_drv.c
index 77ab93d60125..e7e50fccc174 100644
--- a/drivers/gpu/drm/armada/armada_drv.c
+++ b/drivers/gpu/drm/armada/armada_drv.c
@@ -333,26 +333,22 @@ static struct platform_driver armada_drm_platform_driver 
= {
        .id_table = armada_drm_platform_ids,
 };

+static struct platform_driver * const drivers[] = {
+       &armada_lcd_platform_driver,
+       &armada_drm_platform_driver,
+};
+
 static int __init armada_drm_init(void)
 {
-       int ret;
-
        armada_drm_driver.num_ioctls = ARRAY_SIZE(armada_ioctls);

-       ret = platform_driver_register(&armada_lcd_platform_driver);
-       if (ret)
-               return ret;
-       ret = platform_driver_register(&armada_drm_platform_driver);
-       if (ret)
-               platform_driver_unregister(&armada_lcd_platform_driver);
-       return ret;
+       return platform_register_drivers(drivers, ARRAY_SIZE(drivers));
 }
 module_init(armada_drm_init);

 static void __exit armada_drm_exit(void)
 {
-       platform_driver_unregister(&armada_drm_platform_driver);
-       platform_driver_unregister(&armada_lcd_platform_driver);
+       platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
 }
 module_exit(armada_drm_exit);

-- 
2.5.0