Restore the check if an IRQ chip implements the irq_ack function prior
to its invocation. Commit 22a49163e90d ("genirq: Provide compat handling
for chip->ack()") removed the check from handle_edge_irq while keeping
the check in other call paths.Signed-off-by: Adrian-Ken Rueegsegger <[email protected]> --- kernel/irq/chip.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index eb9a4ea..3889b02 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -586,7 +586,8 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc) kstat_incr_irqs_this_cpu(irq, desc); /* Start handling the irq */ - desc->irq_data.chip->irq_ack(&desc->irq_data); + if (desc->irq_data.chip->irq_ack) + desc->irq_data.chip->irq_ack(&desc->irq_data); do { if (unlikely(!desc->action)) { -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
