e(struct snd_pcm_substream *substream) {  struct snd_tm0000_card *chip = snd_pcm_substream_chip(substream);  struct tm0000_core *core = chip->core;   if (atomic_read(&core->stream_started) > 0) {   atomic_set(&core->stream_started, 0);   schedule_work(&core->wq_trigger);  }   