diff --git a/lib/irq_poll.c b/lib/irq_poll.c
index 2836620..836f7db 100644
--- a/lib/irq_poll.c
+++ b/lib/irq_poll.c
@@ -29,7 +29,7 @@
 
 	if (test_bit(IRQ_POLL_F_DISABLE, &iop->state))
 		return;
-	if (!test_and_set_bit(IRQ_POLL_F_SCHED, &iop->state))
+	if (test_and_set_bit(IRQ_POLL_F_SCHED, &iop->state))
 		return;
 
 	local_irq_save(flags);