[PATCH] pata_of_platform: fix no irq handling

[Benjamin Herrenschmidt]

On Mon, 2008-10-13 at 15:56 +0900, Tejun Heo wrote:
> Anton Vorontsov wrote:
> > When no irq specified the pata_of_platform fills the irq_res with -1,
> > which is wrong to do for two reasons:
> > 
> > 1. By definition, 'no irq' should be IRQ 0, not some negative integer;
> > 2. pata_platform checks for irq_res.start > 0, but since irq_res.start
> >    is unsigned type, the check will be true for `-1'.
> > 
> > Reported-by: Steven A. Falco <sfalco at harris.com>
> > Signed-off-by: Anton Vorontsov <avorontsov at ru.mvista.com>
> 
> applied to #tj-upstream (will soon be sent upstream)

Hrm... I applied it to powerpc.git too :-) Hopefully the merge will sort
it out !

Cheers,
Ben.