diff --git a/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c b/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c
index 1c4e89b046de..ac4c69132fa0 100644
--- a/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c
+++ b/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c
@@ -1878,6 +1878,8 @@ static int npcm7xx_gpio_of(struct npcm7xx_pinctrl *pctrl)
 		}
 
 		pctrl->gpio_bank[id].base = ioremap(res.start, resource_size(&res));
+		if (!pctrl->gpio_bank[id].base)
+			return -EINVAL;
 
 		ret = bgpio_init(&pctrl->gpio_bank[id].gc, dev, 4,
 				 pctrl->gpio_bank[id].base + NPCM7XX_GP_N_DIN,