mutex_lock(&bus->cmd_mutex);
err = bus->ops.command(bus, cmd);
if (!err && res)
mutex_lock(&bus->cmd_mutex);
err = bus->ops.command(bus, cmd);
if (!err && res)
mutex_unlock(&bus->cmd_mutex);
snd_hda_power_down(codec);
if (res && *res == -1 && bus->rirb_error) {
mutex_unlock(&bus->cmd_mutex);
snd_hda_power_down(codec);
if (res && *res == -1 && bus->rirb_error) {