snd_pcm_action_lock_irq 1176 sound/core/pcm_native.c res = snd_pcm_action_lock_irq(&snd_pcm_action_resume, substream, 0); snd_pcm_action_lock_irq 2527 sound/core/pcm_native.c return snd_pcm_action_lock_irq(&snd_pcm_action_start, substream, SNDRV_PCM_STATE_RUNNING);