From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 17 Sep 2009 16:46:26 +0000 (+0200)
Subject: ALSA: pcm - Simplify snd_pcm_drain() implementation
X-Git-Tag: v2.6.32-rc1~165^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d3a7dcfeeb6856215412065bd0f774de83f43414;p=pandora-kernel.git

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>
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