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 ( | struct snd_pcm * pcm ); | 
 
Description
   Releases all the pre-allocated buffers on the given pcm.
Return
   Zero if successful, or a negative error code on failure.