backlight_destroy
backlight_destroy(bd->dev->backlight_dev);
backlight_destroy(sc->kbd_bkl);
backlight_destroy(sc->kbb_bkl);
backlight_destroy(sc->sc_kbd_bkl);
backlight_destroy(sc->sc_backlight);
int backlight_destroy(struct cdev *dev);
backlight_destroy(sc->cdev);