snd_pcm_lib_free_pages(9) centos man page | unix.com

SND_PCM_LIB_FREE_PAG(9) 					      PCM API						   SND_PCM_LIB_FREE_PAG(9)

NAME
       snd_pcm_lib_free_pages - release the allocated DMA buffer.

SYNOPSIS
       int snd_pcm_lib_free_pages(struct snd_pcm_substream * substream);

ARGUMENTS
       substream
	   the substream to release the DMA buffer

DESCRIPTION
       Releases the DMA buffer allocated via snd_pcm_lib_malloc_pages.

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

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   SND_PCM_LIB_FREE_PAG(9)