diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
index 8e792f8e2dc9adcaef6f1ad0c56ca53712e2128b..9d8b59dafa4b4d256f6adc728e18d1d404cb8683 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
@@ -1139,8 +1139,7 @@ static void sunxi_pinctrl_irq_handler(struct irq_desc *desc)
 		if (irq == pctl->irq[bank])
 			break;
 
-	if (bank == pctl->desc->irq_banks)
-		return;
+	WARN_ON(bank == pctl->desc->irq_banks);
 
 	reg = sunxi_irq_status_reg_from_bank(pctl->desc, bank);
 	val = readl(pctl->membase + reg);