backlight: hp680_bl - Use platform_device_register_simple()

Use platform_device_register_simple() and also fix error
handling when platform_device_alloc() fails (hp680_bl_driver
is left registered).

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

diff --git a/drivers/video/backlight/hp680_bl.c b/drivers/video/backlight/hp680_bl.c
index d4cfed0..5be55a2 100644 (file)
--- a/drivers/video/backlight/hp680_bl.c
+++ b/drivers/video/backlight/hp680_bl.c
@@ -151,19 +151,15 @@ static int __init hp680bl_init(void)
        int ret;
 
        ret = platform_driver_register(&hp680bl_driver);
-       if (!ret) {
-               hp680bl_device = platform_device_alloc("hp680-bl", -1);
-               if (!hp680bl_device)
-                       return -ENOMEM;
-
-               ret = platform_device_add(hp680bl_device);
-
-               if (ret) {
-                       platform_device_put(hp680bl_device);
-                       platform_driver_unregister(&hp680bl_driver);
-               }
+       if (ret)
+               return ret;
+       hp680bl_device = platform_device_register_simple("hp680-bl", -1,
+                                                       NULL, 0);
+       if (IS_ERR(hp680bl_device)) {
+               platform_driver_unregister(&hp680bl_driver);
+               return PTR_ERR(hp680bl_device);
        }
-       return ret;
+       return 0;
 }
 
 static void __exit hp680bl_exit(void)