backlight: lv5207lp: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler.
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>

drivers/video/backlight/lv5207lp.c

@@ -124,9 +124,9 @@ static int lv5207lp_probe(struct i2c_client *client,
 	props.brightness = clamp_t(unsigned int, pdata->def_value, 0,
 				   props.max_brightness);
 
-	backlight = backlight_device_register(dev_name(&client->dev),
-					      &lv->client->dev, lv,
-					      &lv5207lp_backlight_ops, &props);
+	backlight = devm_backlight_device_register(&client->dev,
+				dev_name(&client->dev), &lv->client->dev,
+				lv, &lv5207lp_backlight_ops, &props);
 	if (IS_ERR(backlight)) {
 		dev_err(&client->dev, "failed to register backlight\n");
 		return PTR_ERR(backlight);
@@ -144,7 +144,6 @@ static int lv5207lp_remove(struct i2c_client *client)
 
 	backlight->props.brightness = 0;
 	backlight_update_status(backlight);
-	backlight_device_unregister(backlight);
 
 	return 0;
 }