Re: [stable] PCI: acpiphp: check whether _ADR evaluation succeeded

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On Mon, Oct 8, 2012 at 10:28 AM, Greg KH <greg@xxxxxxxxx> wrote:
> On Sun, Oct 07, 2012 at 09:57:47PM +0100, Ben Hutchings wrote:
>> Based on <https://bugzilla.kernel.org/show_bug.cgi?id=46481>, the
>> following commit should be cherry-picked for stable series < 3.6:
>>
>> commit dfb117b3e50c52c7b3416db4a4569224b8db80bb
>> Author: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
>> Date:   Wed Jun 20 16:18:29 2012 -0600
>>
>>     PCI: acpiphp: check whether _ADR evaluation succeeded
>>
>> It applies cleanly to 3.2.y and presumably also to later stable
>> branches.  I've attached a version that applies to 2.6.32.y and 3.0.y,
>> and presumably also to the intermediate stable branches.  Only 3.2.y has
>> actually been tested with this, though.
>
> Thanks, now applied.

Has anybody looked deeper to see exactly *how* this patch fixes the
problem?  The original reports were oopses caused by dereferencing bad
pointers in DRM, and it's not obvious to me how this patch is
connected to those.
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