On 2015/5/20 23:40, Thomas Gleixner wrote:
> On Wed, 20 May 2015, Jiang Liu wrote:
>> /* Chained IRQ handler for IPU error interrupt */
>> -static void ipu_irq_err(unsigned int irq, struct irq_desc *desc)
>> +static void ipu_irq_err(struct irq_desc *desc)
>> {
>> + unsigned int irq = irq_desc_to_irq(desc);
>
> Why initializing? It's overwritten in the loop.
Hi Thomas,
I'm not familiar with the hardware, but if src2map() returns 0
on the first call, we need to initialize irq. Otherwise
generic_handle_irq(irq) will use random value on the first call.
---------------------------------------------------------
map = src2map(32 * i + line);
if (map)
irq = map->irq;
---------------------------------------------------------
Thanks!
Gerry
>
>> /* Chained IRQ handler for IPU function interrupt */
>> -static void ipu_irq_fn(unsigned int irq, struct irq_desc *desc)
>> +static void ipu_irq_fn(struct irq_desc *desc)
>> {
>> + unsigned int irq = irq_desc_to_irq(desc);
>
> Ditto.
>
> Thanks,
>
> tglx
>
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