tree a36a83bd636afda8ac5048717461fc302459abad
parent 87bfa1dbfb22aab2bb6c1085c1fe7d56cdd2f044
author Takashi Iwai <tiwai@suse.de> 1253205986 +0200
committer Takashi Iwai <tiwai@suse.de> 1253538789 +0200

ALSA: pcm - Simplify snd_pcm_drain() implementation

Simplify snd_pcm_drain() implementation and avoid unneeded array-
allocation for waitqueues.  Instead, one waitqueue is used for the
first draining stream, and wait until all streams finished.

Signed-off-by: Takashi Iwai <tiwai@suse.de>