linux-2.6.33/snd_pcm_detach_substream()

参照元†

• linux-2.6.33/snd_pcm_release_substream()

説明†

• パス: linux-2.6.33/sound/core/pcm.c

• FIXME: これは何？
  • 説明

引数†

• struct snd_pcm_substream *substream
  • linux-2.6.33/snd_pcm_substream

返り値†

• なし

参考†

実装†

void snd_pcm_detach_substream(struct snd_pcm_substream *substream)
{
	struct snd_pcm_runtime *runtime;

• • linux-2.6.33/snd_pcm_runtime

	if (PCM_RUNTIME_CHECK(substream))
		return;
	runtime = substream->runtime;

• • linux-2.6.33/PCM_RUNTIME_CHECK()

	if (runtime->private_free != NULL)
		runtime->private_free(runtime);
	snd_free_pages((void*)runtime->status,
		       PAGE_ALIGN(sizeof(struct snd_pcm_mmap_status)));
	snd_free_pages((void*)runtime->control,
		       PAGE_ALIGN(sizeof(struct snd_pcm_mmap_control)));

• • linux-2.6.33/snd_free_pages()

	kfree(runtime->hw_constraints.rules);
	kfree(runtime);

• • linux-2.6.33/kfree()

	substream->runtime = NULL;
	put_pid(substream->pid);
	substream->pid = NULL;
	substream->pstr->substream_opened--;

• • linux-2.6.33/put_pid()

}

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• katsuhiro

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