Re: [PATCH] cpuidle: fix number of initialized/destroyed states
From: Rafael J. Wysocki
Date: Mon Jan 07 2013 - 18:42:35 EST
On Monday, January 07, 2013 11:56:36 PM Daniel Lezcano wrote:
> 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>
I have a pull request for 3.8-rc3 ready, so I'll send this one in the next
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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