From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 28 Dec 2009 11:24:22 +0000 (+0100)
Subject: ALSA: usb-audio - Avoid Oops after disconnect
X-Git-Tag: v2.6.33-rc4~9^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=78b8d5d2ee280c463908fd75f3bdf246bcb6ac8d;p=pandora-kernel.git

ALSA: usb-audio - Avoid Oops after disconnect

As the release of substreams may be done asynchronously from the
disconnection, close callback needs to check the shutdown flag before
actually accessing the usb interface.

Reference: Novell bnc#505027
	http://bugzilla.novell.com/show_bug.cgi?id=565027

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