On Fri, Oct 19, 2012 at 6:22 PM, Stephen Warren <swar...@wwwdotorg.org> wrote:
> On 10/19/2012 09:09 AM, Linus Walleij wrote:
>> From: Linus Walleij <linus.wall...@linaro.org>
>
>> @@ -931,7 +931,7 @@ static void __nmk_gpio_irq_handler(unsigned int irq,
>> struct irq_desc *desc,
>> while (status) {
>> int bit = __ffs(status);
>>
>> - generic_handle_irq(irq_find_mapping(nmk_chip->domain, bit));
>> + generic_handle_irq(irq_create_mapping(nmk_chip->domain, bit));
>
> Surely this one can remain as irq_find_mapping() since isn't
> nmk_gpio_to_irq() guaranteed to have been called first for this GPIO/IRQ?
It's an IRQ handler so it should be robust to spurious IRQs due to
transient hardware states etc I believe.
So if there is a transient IRQ before gpio_to_irq() is called -> boom.
Yours,
Linus Walleij
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
