From 888ea7d5ac6815ba16b3b3a20f665a92c7af6724 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 15 Oct 2012 12:40:37 +0200
Subject: [PATCH] ALSA: usb-audio: Fix races at disconnection in mixer_quirks.c

Similar like the previous commit, cover with chip->shutdown_rwsem
and chip->shutdown checks.

Reported-by: Matthieu CASTET <matthieu.castet@parrot.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Reading git-format-patch failed