backlight: s6e63m0: use devm_{backlight,lcd}_device_register()

Use devm_backlight_device_register() and devm_lcd_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/s6e63m0.c

@@ -741,7 +741,8 @@ static int s6e63m0_probe(struct spi_device *spi)
 		return -EINVAL;
 	}
 
-	ld = lcd_device_register("s6e63m0", &spi->dev, lcd, &s6e63m0_lcd_ops);
+	ld = devm_lcd_device_register(&spi->dev, "s6e63m0", &spi->dev, lcd,
+				&s6e63m0_lcd_ops);
 	if (IS_ERR(ld))
 		return PTR_ERR(ld);
 
@@ -751,12 +752,11 @@ static int s6e63m0_probe(struct spi_device *spi)
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = MAX_BRIGHTNESS;
 
-	bd = backlight_device_register("s6e63m0bl-bl", &spi->dev, lcd,
-		&s6e63m0_backlight_ops, &props);
-	if (IS_ERR(bd)) {
-		ret =  PTR_ERR(bd);
-		goto out_lcd_unregister;
-	}
+	bd = devm_backlight_device_register(&spi->dev, "s6e63m0bl-bl",
+					&spi->dev, lcd, &s6e63m0_backlight_ops,
+					&props);
+	if (IS_ERR(bd))
+		return PTR_ERR(bd);
 
 	bd->props.brightness = MAX_BRIGHTNESS;
 	lcd->bd = bd;
@@ -798,10 +798,6 @@ static int s6e63m0_probe(struct spi_device *spi)
 	dev_info(&spi->dev, "s6e63m0 panel driver has been probed.\n");
 
 	return 0;
-
-out_lcd_unregister:
-	lcd_device_unregister(ld);
-	return ret;
 }
 
 static int s6e63m0_remove(struct spi_device *spi)
@@ -811,8 +807,6 @@ static int s6e63m0_remove(struct spi_device *spi)
 	s6e63m0_power(lcd, FB_BLANK_POWERDOWN);
 	device_remove_file(&spi->dev, &dev_attr_gamma_table);
 	device_remove_file(&spi->dev, &dev_attr_gamma_mode);
-	backlight_device_unregister(lcd->bd);
-	lcd_device_unregister(lcd->ld);
 
 	return 0;
 }