linux-kernel - Re: [PATCH] cpuidle: fix number of initialized/destroyed states

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Date:	Mon, 07 Jan 2013 23:56:36 +0100
From:	Daniel Lezcano <daniel.lezcano@...aro.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
CC:	Krzysztof Mazur <krzysiek@...lesie.net>,
	linux-kernel@...r.kernel.org,
	Linux PM list <linux-pm@...r.kernel.org>,
	Lists Linaro-dev <linaro-dev@...ts.linaro.org>
Subject: Re: [PATCH] cpuidle: fix number of initialized/destroyed states

On 01/07/2013 10:58 PM, Rafael J. Wysocki wrote:
> Hi,
> 
> Thanks for the patch!
> 
> I'd like Daniel to have a look at it still.

I agree with this patch. I was about to send exactly the same.

Thanks Krzysztof for fixing this.


> On Monday, January 07, 2013 08:12:01 PM Krzysztof Mazur wrote:
>> Commit bf4d1b5ddb78f86078ac6ae0415802d5f0c68f92 (cpuidle: support
>> multiple drivers) changed the number of initialized state kobjects
>> in cpuidle_add_state_sysfs() from device->state_count to drv->state_count,
>> but leaved device->state_count in cpuidle_remove_state_sysfs().
>> Those two values might have different values, causing for instance
>> NULL pointer dereference in cpuidle_remove_state_sysfs().
>>
>> Signed-off-by: Krzysztof Mazur <krzysiek@...lesie.net>

Acked-by: Daniel Lezcano <daniel.lezcano@...aro.org>


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