329 	mutex_lock(&ac97->reg_mutex);  in snd_ac97_write_cache()
333 	mutex_unlock(&ac97->reg_mutex);  in snd_ac97_write_cache()
356 	mutex_lock(&ac97->reg_mutex);  in snd_ac97_update()
363 	mutex_unlock(&ac97->reg_mutex);  in snd_ac97_update()
388 	mutex_lock(&ac97->reg_mutex);  in snd_ac97_update_bits()
390 	mutex_unlock(&ac97->reg_mutex);  in snd_ac97_update_bits()
424 		mutex_lock(&ac97->reg_mutex);  in snd_ac97_ad18xx_update_pcm_bits()
436 		mutex_unlock(&ac97->reg_mutex);  in snd_ac97_ad18xx_update_pcm_bits()
719 	mutex_lock(&ac97->reg_mutex);  in snd_ac97_spdif_default_get()
724 	mutex_unlock(&ac97->reg_mutex);  in snd_ac97_spdif_default_get()
763 	mutex_lock(&ac97->reg_mutex);  in snd_ac97_spdif_default_put()
797 	mutex_unlock(&ac97->reg_mutex);  in snd_ac97_spdif_default_put()
814 	mutex_lock(&ac97->reg_mutex);  in snd_ac97_put_spsa()
828 	mutex_unlock(&ac97->reg_mutex);  in snd_ac97_put_spsa()
2093 	mutex_init(&ac97->reg_mutex);  in snd_ac97_mixer()