NAME
snd_pcm_lib_preallocate_free_for_all - release all pre-allocated
buffers on the pcm
SYNOPSIS
int snd_pcm_lib_preallocate_free_for_all (snd_pcm_t * pcm);
ARGUMENTS
pcm the pcm instance
DESCRIPTION
Releases all the pre-allocated buffers on the given pcm.
Returns zero if successful, or a negative error code on failure.