From bffb8879ed2e5da445a280a8869ec608f21500e1 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 18 Mar 2011 07:31:53 +0100
Subject: [PATCH] ALSA: aloop - Fix possible IRQ lock inversion

commit 98d21df431ad55281e1abf780f8d51e3391900b2 upstream.

loopback_pos_update() can be called in the timer callback, thus the lock
held should be irq-safe.  Otherwise you'll get AB/BA deadlock together
with substream->self_group.lock.

Reported-and-tested-by: Knut Petersen <Knut_Petersen@t-online.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
Reading git-format-patch failed