linux-kernel - Re: [Patch] Fix the possibility of insane return value of hpet

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Message-ID: <20090318082523.GA11543@suse.cz>
Date:	Wed, 18 Mar 2009 09:25:23 +0100
From:	Vojtech Pavlik <vojtech@...e.cz>
To:	Clemens Ladisch <clemens@...isch.de>
Cc:	Yasunori Goto <y-goto@...fujitsu.com>,
	Paul Gortmaker <paul.gortmaker@...driver.com>,
	Linux Kernel ML <linux-kernel@...r.kernel.org>,
	robert.picco@...com, venkatesh.pallipadi@...el.com,
	mingo@...hat.com, Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [Patch] Fix the possibility of insane return value of
	hpet_calibrate() against SMI. (take 2)

On Wed, Mar 18, 2009 at 08:44:30AM +0100, Clemens Ladisch wrote:
> Yasunori Goto wrote:
> > hpet_calibrate() has a possibility of miss-calibration due to SMI.
> > If SMI interrupts in the while loop of calibration, then return value
> > will be big. This change calibrates until stabilizing by the return
> > value with a small value.
> > 
> > Signed-off-by: Yasunori Goto <y-goto@...fujitsu.com>
> 
> Acked-by: Clemens Ladisch <clemens@...isch.de>

Acked-by: Vojtech Pavlik <vojtech@...e.cz>

-- 
Vojtech Pavlik
Director SuSE Labs
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