From f24640648186b59bd39f8cd640d631bdb61a3197 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 29 Jan 2014 12:13:43 +0100
Subject: [PATCH] ALSA: Use standard device refcount for card accounting

Drop the own refcount but use the standard device refcounting via
get_device() and put_device().  Introduce a new completion to snd_card
instead of the wait queue for syncing the last release, which is used
in snd_card_free().

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