ca0106_pcm_t *epcm = runtime->private_data;  if (epcm) { kfree(epcm); }
kfree(runtime->private_data);
static void snd_ca0106_pcm_free_substream(snd_pcm_runtime_t *runtime){	ca0106_pcm_t *epcm = runtime->private_data;  	if (epcm) {		kfree(epcm);	}}