Re: a7839e96 (PNP: increase max resources) breaks my ALSA intel8x0 sound card

Bjorn Helgaas
2008-02-14T20:59:58Z

On Thursday 14 February 2008 01:26:59 pm Linus Torvalds wrote:
>
> On Thu, 14 Feb 2008, Bjorn Helgaas wrote:
>
> > On Thursday 14 February 2008 12:42:52 pm Linus Torvalds wrote:
> > >
> > > It *shouldn't* fail.
> > >
> > > Things should fail only when two different drivers have requested the same
> > > region. NOT when something tells the system that a region _exists_.
> >
> > The sound driver doesn't fail because two different drivers have
> > requested the same region; it fails because PNP told us a region
> > exists, and the sound region crosses the edge of the PNP region.
>
> Right, and that was a bug.
>
> It *shouldn't* fail. The PnP resource should be inserted _after_ the
> PCI region has been inserted, and _that_ should fail, since the PnP region
> is crap and cannot be inserted "half-way".

That means the PNP system driver has to be registered after the PCI
driver. We can't guarantee that, especially if the sound driver is
a module.

Bjorn