irqchip/bcm2836: Tolerate IRQs while no flag is set in ISR

On my RPi2 I got a lot of:
unexpected IRQ trap at vector 00

This happens because bcm2836_arm_irqchip_handle_irq() is sometimes
invoked even if the ISR is clear, and this case is not handled.

This patch explicitly handle this case, fixing the kernel complaints
about the bad IRQ lookup.

Signed-off-by: Andrea Merello <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
Signed-off-by: Eric Anholt <[email protected]>
Cc: [email protected]
Cc: Stephen Warren <[email protected]>
Cc: Lee Jones <[email protected]>
Cc: Florian Fainelli <[email protected]>
Cc: Jason Cooper <[email protected]>
Cc: Marc Zyngier <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>

0 files changed, 0 insertions, 0 deletions