360 	struct mtx *mixer_lock;  member
2961 	if (sc->sc_child[0].mixer_lock == NULL)  in uaudio_mixer_sysctl_handler()
2966 	mtx_lock(sc->sc_child[0].mixer_lock);  in uaudio_mixer_sysctl_handler()
2977 	mtx_unlock(sc->sc_child[0].mixer_lock);  in uaudio_mixer_sysctl_handler()
2985 	mtx_lock(sc->sc_child[0].mixer_lock);  in uaudio_mixer_sysctl_handler()
2995 	mtx_unlock(sc->sc_child[0].mixer_lock);  in uaudio_mixer_sysctl_handler()
3226 	if (sc->sc_child[0].mixer_lock == NULL)  in uaudio_mixer_reload_all()
3229 	mtx_lock(sc->sc_child[0].mixer_lock);  in uaudio_mixer_reload_all()
3241 	mtx_unlock(sc->sc_child[0].mixer_lock);  in uaudio_mixer_reload_all()
5445 	sc->sc_child[i].mixer_lock = mixer_get_lock(m);  in uaudio_mixer_init_sub()
5451 	    sc->sc_child[i].mixer_lock)) {  in uaudio_mixer_init_sub()
5476 	sc->sc_child[index].mixer_lock = NULL;  in uaudio_mixer_uninit_sub()
6194 	if (sc->sc_child[0].mixer_lock == NULL)  in uaudio_hid_probe()
6255 	    sc, sc->sc_child[0].mixer_lock);  in uaudio_hid_probe()