backlight: bd6107: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/video/backlight/bd6107.c

···
 	props.brightness = clamp_t(unsigned int, pdata->def_value, 0,
 				   props.max_brightness);
 
-	backlight = backlight_device_register(dev_name(&client->dev),
+	backlight = devm_backlight_device_register(&client->dev,
+					      dev_name(&client->dev),
 					      &bd->client->dev, bd,
 					      &bd6107_backlight_ops, &props);
 	if (IS_ERR(backlight)) {
···
 
 	backlight->props.brightness = 0;
 	backlight_update_status(backlight);
-	backlight_device_unregister(backlight);
 
 	return 0;
 }