345 	mutex_lock(&ac97->reg_mutex);  in snd_ac97_write_cache()
349 	mutex_unlock(&ac97->reg_mutex);  in snd_ac97_write_cache()
372 	mutex_lock(&ac97->reg_mutex);  in snd_ac97_update()
379 	mutex_unlock(&ac97->reg_mutex);  in snd_ac97_update()
404 	mutex_lock(&ac97->reg_mutex);  in snd_ac97_update_bits()
406 	mutex_unlock(&ac97->reg_mutex);  in snd_ac97_update_bits()
440 		mutex_lock(&ac97->reg_mutex);  in snd_ac97_ad18xx_update_pcm_bits()
452 		mutex_unlock(&ac97->reg_mutex);  in snd_ac97_ad18xx_update_pcm_bits()
740 	mutex_lock(&ac97->reg_mutex);  in snd_ac97_spdif_default_get()
745 	mutex_unlock(&ac97->reg_mutex);  in snd_ac97_spdif_default_get()
784 	mutex_lock(&ac97->reg_mutex);  in snd_ac97_spdif_default_put()
818 	mutex_unlock(&ac97->reg_mutex);  in snd_ac97_spdif_default_put()
835 	mutex_lock(&ac97->reg_mutex);  in snd_ac97_put_spsa()
849 	mutex_unlock(&ac97->reg_mutex);  in snd_ac97_put_spsa()
2050 	mutex_init(&ac97->reg_mutex);  in snd_ac97_mixer()