linux-kernel - Re: [PATCH 13/16] isdn: hisax/elsa: fix sleep

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Message-Id: <20140226.160840.2252241966959740296.davem@davemloft.net>
Date:	Wed, 26 Feb 2014 16:08:40 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	arnd@...db.de
Cc:	linux-kernel@...r.kernel.org, isdn@...ux-pingi.de,
	netdev@...r.kernel.org
Subject: Re: [PATCH 13/16] isdn: hisax/elsa: fix sleep_on race in elsa FSM

From: Arnd Bergmann <arnd@...db.de>
Date: Wed, 26 Feb 2014 12:01:53 +0100

> The state machine code in the elsa driver uses interruptible_sleep_on
> to wait for state changes, which is racy. A closer look at the possible
> states reveals that it is always used to wait for getting back into
> ARCOFI_NOP, so we can use wait_event_interruptible instead.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Applied.
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