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

From: Daniel Lezcano
Date: Mon Jan 07 2013 - 17:56:26 EST

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@xxxxxxxxxxxx>

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

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