1. NAME

snd_pcm_lib_free_pages - release the allocated DMA buffer.

2. SYNOPSIS

int snd_pcm_lib_free_pages(struct snd_pcm_substream *  substream );

3. ARGUMENTS

substream
    the substream to release the DMA buffer

4. DESCRIPTION

Releases the DMA buffer allocated via snd_pcm_lib_malloc_pages.

5. RETURN

Zero if successful, or a negative error code on failure.

6. COPYRIGHT