diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index a079ed14f230..4889a8ab77ce 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -1189,8 +1189,10 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new) * set the trigger type must match. Also all must * agree on ONESHOT. */ + unsigned int oldtype = irqd_get_trigger_type(&desc->irq_data); + if (!((old->flags & new->flags) & IRQF_SHARED) || - ((old->flags ^ new->flags) & IRQF_TRIGGER_MASK) || + (oldtype != (new->flags & IRQF_TRIGGER_MASK)) || ((old->flags ^ new->flags) & IRQF_ONESHOT)) goto mismatch;