Re: [PATCH] genirq: Give warning when setup an already-setup non-sharedirq

[Thomas Gleixner]

On Thu, 10 Jan 2013, Chuansheng Liu wrote:
> 
> Meet the case when the request_threaded_irq() with the same irq
> is called twice continually, get the below mismatch info:
> "IRQ handler type mismatch for IRQ 323"

I have no idea where you get that from. The mismatch is printed with:

        if (!(new->flags & IRQF_PROBE_SHARED)) {
	   pr_err("Flags mismatch irq %d. %08x (%s) vs. %08x (%s)\n",
                       irq, new->flags, new->name, old->flags, old->name);

And its only printed when IRQF_PROBE_SHARED is not set. Your change
would cause printouts where no printouts are due and it'd change the
return value from EBUSY to EINVAL.

Thanks,

	tglx
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