linux-kernel - Re: [PATCH] isdn: fix possible circular locking dependency

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Message-Id: <20091022.182844.11139590.davem@davemloft.net>
Date:	Thu, 22 Oct 2009 18:28:44 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	xtfeng@...il.com
Cc:	isdn@...ux-pingi.de, isdn4linux@...tserv.isdn4linux.de,
	tilman@...p.cc, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] isdn: fix possible circular locking dependency

From: Xiaotian Feng <xtfeng@...il.com>
Date: Thu, 22 Oct 2009 17:07:04 +0800

> There's a circular locking dependency:
 ...
>  We don't need to lock nd->queue->xmit_lock to protect single
> isdn_net_lp_busy(). This can fix above lockdep warnings.
> 
> Reported-and-tested-by: Tilman Schmidt <tilman@...p.cc>
> Signed-off-by: Xiaotian Feng <xtfeng@...il.com>

Applied, thanks.
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