330 	mutex_lock(&ac97->reg_mutex);  in snd_ac97_write_cache()
334 	mutex_unlock(&ac97->reg_mutex);  in snd_ac97_write_cache()
357 	mutex_lock(&ac97->reg_mutex);  in snd_ac97_update()
364 	mutex_unlock(&ac97->reg_mutex);  in snd_ac97_update()
389 	mutex_lock(&ac97->reg_mutex);  in snd_ac97_update_bits()
391 	mutex_unlock(&ac97->reg_mutex);  in snd_ac97_update_bits()
425 		mutex_lock(&ac97->reg_mutex);  in snd_ac97_ad18xx_update_pcm_bits()
437 		mutex_unlock(&ac97->reg_mutex);  in snd_ac97_ad18xx_update_pcm_bits()
720 	mutex_lock(&ac97->reg_mutex);  in snd_ac97_spdif_default_get()
725 	mutex_unlock(&ac97->reg_mutex);  in snd_ac97_spdif_default_get()
764 	mutex_lock(&ac97->reg_mutex);  in snd_ac97_spdif_default_put()
798 	mutex_unlock(&ac97->reg_mutex);  in snd_ac97_spdif_default_put()
815 	mutex_lock(&ac97->reg_mutex);  in snd_ac97_put_spsa()
829 	mutex_unlock(&ac97->reg_mutex);  in snd_ac97_put_spsa()
2031 	mutex_init(&ac97->reg_mutex);  in snd_ac97_mixer()