diff --git a/kernel/irq/resend.c b/kernel/irq/resend.c index 1faf8991adbb51ac179f313c09da2f4742deb2ba..7de48bc06c754b960d91c4934d2bd17ac56acca5 100644 --- a/kernel/irq/resend.c +++ b/kernel/irq/resend.c @@ -105,6 +105,7 @@ static int try_retrigger(struct irq_desc *desc) */ int check_irq_resend(struct irq_desc *desc) { + int err = 0; /* * We do not resend level type interrupts. Level type interrupts @@ -118,11 +119,16 @@ int check_irq_resend(struct irq_desc *desc) if (desc->istate & IRQS_REPLAY) return -EBUSY; - if (desc->istate & IRQS_PENDING) { - desc->istate &= ~IRQS_PENDING; + if (!(desc->istate & IRQS_PENDING)) + return 0; + + desc->istate &= ~IRQS_PENDING; + + if (!try_retrigger(desc)) + err = irq_sw_resend(desc); + + /* If the retrigger was successfull, mark it with the REPLAY bit */ + if (!err) desc->istate |= IRQS_REPLAY; - if (!try_retrigger(desc)) - return irq_sw_resend(desc); - } - return 0; + return err; }