add_control_to_empty  990 sound/usb/usbmixer.c 	add_control_to_empty(state, kctl);
add_control_to_empty 1104 sound/usb/usbmixer.c 	add_control_to_empty(state, kctl);
add_control_to_empty 1362 sound/usb/usbmixer.c 		if ((err = add_control_to_empty(state, kctl)) < 0)
add_control_to_empty 1574 sound/usb/usbmixer.c 	if ((err = add_control_to_empty(state, kctl)) < 0)