backlight: gpio_backlight: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler, and
remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/video/backlight/gpio_backlight.c b/drivers/video/backlight/gpio_backlight.c
index 118da0c6386fe8bd44b25b767668daa9c607633b..81fb12770c2a259f1ff2a3cc45103b6bc85b5d8a 100644 (file)
--- a/drivers/video/backlight/gpio_backlight.c
+++ b/drivers/video/backlight/gpio_backlight.c
@@ -95,8 +95,9 @@ static int gpio_backlight_probe(struct platform_device *pdev)
        memset(&props, 0, sizeof(props));
        props.type = BACKLIGHT_RAW;
        props.max_brightness = 1;
-       bl = backlight_device_register(dev_name(&pdev->dev), &pdev->dev, gbl,
-                                      &gpio_backlight_ops, &props);
+       bl = devm_backlight_device_register(&pdev->dev, dev_name(&pdev->dev),
+                                       &pdev->dev, gbl, &gpio_backlight_ops,
+                                       &props);
        if (IS_ERR(bl)) {
                dev_err(&pdev->dev, "failed to register backlight\n");
                return PTR_ERR(bl);
@@ -109,21 +110,12 @@ static int gpio_backlight_probe(struct platform_device *pdev)
        return 0;
 }
 
-static int gpio_backlight_remove(struct platform_device *pdev)
-{
-       struct backlight_device *bl = platform_get_drvdata(pdev);
-
-       backlight_device_unregister(bl);
-       return 0;
-}
-
 static struct platform_driver gpio_backlight_driver = {
        .driver         = {
                .name           = "gpio-backlight",
                .owner          = THIS_MODULE,
        },
        .probe          = gpio_backlight_probe,
-       .remove         = gpio_backlight_remove,
 };
 
 module_platform_driver(gpio_backlight_driver);