Re: [PATCH 2/5] irq: fix existing domain check in irq_domain_add

From: Grant Likely
Date: Sat Sep 17 2011 - 19:24:50 EST


On Wed, Sep 14, 2011 at 06:44:50PM +0200, Thomas Gleixner wrote:
> On Wed, 14 Sep 2011, Rob Herring wrote:
>
> > From: Rob Herring <rob.herring@xxxxxxxxxxx>
> >
> > irq_data will normally exist, so the domain was prevented from being set.
> > The simple domain code did not hit this as nr_irq is always 0.
> >
> > Signed-off-by: Rob Herring <rob.herring@xxxxxxxxxxx>
> > Cc: Grant Likely <grant.likely@xxxxxxxxxxxx>
> > Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
>
> I take this and 1/5 through irq/urgent

Thanks Thomas.

g.

>
> Thanks,
>
> tglx
>
> > ---
> > kernel/irq/irqdomain.c | 2 +-
> > 1 files changed, 1 insertions(+), 1 deletions(-)
> >
> > diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
> > index d5828da..84f4110 100644
> > --- a/kernel/irq/irqdomain.c
> > +++ b/kernel/irq/irqdomain.c
> > @@ -29,7 +29,7 @@ void irq_domain_add(struct irq_domain *domain)
> > */
> > for (hwirq = 0; hwirq < domain->nr_irq; hwirq++) {
> > d = irq_get_irq_data(irq_domain_to_irq(domain, hwirq));
> > - if (d || d->domain) {
> > + if (d && d->domain) {
> > /* things are broken; just report, don't clean up */
> > WARN(1, "error: irq_desc already assigned to a domain");
> > return;
> > --
> > 1.7.5.4
> >
> >
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