leds: lm36274: use devres LED registering function

Now that the potential use-after-free issue is resolved we can use
devres for LED registration in this driver.

By using devres version of LED registering function we can remove the
.remove method from this driver.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>

diff --git a/drivers/leds/leds-lm36274.c b/drivers/leds/leds-lm36274.c
index 74c236d1a60c8a35855139e8b6ec32d7c46e56b8..10a63b7f2ecced0f04df26ac7384434097cb5bd2 100644 (file)
--- a/drivers/leds/leds-lm36274.c
+++ b/drivers/leds/leds-lm36274.c
@@ -142,7 +142,8 @@ static int lm36274_probe(struct platform_device *pdev)
        chip->led_dev.max_brightness = MAX_BRIGHTNESS_11BIT;
        chip->led_dev.brightness_set_blocking = lm36274_brightness_set;
 
-       ret = led_classdev_register_ext(chip->dev, &chip->led_dev, &init_data);
+       ret = devm_led_classdev_register_ext(chip->dev, &chip->led_dev,
+                                            &init_data);
        if (ret)
                dev_err(chip->dev, "Failed to register LED for node %pfw\n",
                        init_data.fwnode);
@@ -152,15 +153,6 @@ static int lm36274_probe(struct platform_device *pdev)
        return ret;
 }
 
-static int lm36274_remove(struct platform_device *pdev)
-{
-       struct lm36274 *chip = platform_get_drvdata(pdev);
-
-       led_classdev_unregister(&chip->led_dev);
-
-       return 0;
-}
-
 static const struct of_device_id of_lm36274_leds_match[] = {
        { .compatible = "ti,lm36274-backlight", },
        {},
@@ -169,7 +161,6 @@ MODULE_DEVICE_TABLE(of, of_lm36274_leds_match);
 
 static struct platform_driver lm36274_driver = {
        .probe  = lm36274_probe,
-       .remove = lm36274_remove,
        .driver = {
                .name = "lm36274-leds",
        },