Cleanup the failure cleanup handling for brightness and email led.
[cc: Split out from another patch]
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
        }
 
        err = acer_rfkill_init(&device->dev);
+       if (err)
+               goto error_rfkill;
 
        return err;
 
+error_rfkill:
+       if (has_cap(ACER_CAP_BRIGHTNESS))
+               acer_backlight_exit();
 error_brightness:
-       acer_led_exit();
+       if (has_cap(ACER_CAP_MAILLED))
+               acer_led_exit();
 error_mailled:
        return err;
 }