diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index a4888ce4667a4..1ca39dc4538d8 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -723,6 +723,7 @@ int __irq_set_trigger(struct irq_desc *desc, unsigned long flags)
 	case IRQ_SET_MASK_OK_DONE:
 		irqd_clear(&desc->irq_data, IRQD_TRIGGER_MASK);
 		irqd_set(&desc->irq_data, flags);
+		/* fall through */
 
 	case IRQ_SET_MASK_OK_NOCOPY:
 		flags = irqd_get_trigger_type(&desc->irq_data);