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SubjectRe: [PATCH] pata_of_platform: fix no irq handling
Anton Vorontsov wrote:
> On Mon, Oct 06, 2008 at 03:41:19PM -0500, Matt Sealey wrote:
>> There is a simple problem with the patch which is that an "IRQ 0" can and does
>> actually exist on a bunch of platforms, at least to the best of my knowledge.
>>
>> Checking for -1 (which means for definite, no irq at all, because it is
>> totally unambiguous, as a -1 IRQ numbering is "impossible") is more correct.
>
> This was discussed years ago.
>
> http://lkml.org/lkml/2005/11/22/159
> http://lkml.org/lkml/2005/11/22/227
>

Would this break any existing platforms? If so, can those be fixed
together or does it become a much bigger problem that way?

Thanks.

--
tejun


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