On Tue, 2010-05-11 at 12:23 +1000, Anton Blanchard wrote:
> With sparse irqs we have to check if we have a descriptor before dereferencing
> it.
>
> Signed-off-by: Anton Blanchard <an...@samba.org>
> ---
>
> diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c
> index 6f4613d..5182439 100644
> --- a/arch/powerpc/kernel/crash.c
> +++ b/arch/powerpc/kernel/crash.c
> @@ -375,6 +375,9 @@ void default_machine_crash_shutdown(struct pt_regs *regs)
> for_each_irq(i) {
> struct irq_desc *desc = irq_to_desc(i);
>
> + if (!desc)
> + continue;
> +
> if (desc->status & IRQ_INPROGRESS)
> desc->chip->eoi(i);
> Ouch, my bad. cheers
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