diff --git a/drivers/pinctrl/mediatek/pinctrl-paris.c b/drivers/pinctrl/mediatek/pinctrl-paris.c
index 31a4d464211c..54fc337f2eb3 100644
--- a/drivers/pinctrl/mediatek/pinctrl-paris.c
+++ b/drivers/pinctrl/mediatek/pinctrl-paris.c
@@ -610,7 +610,7 @@ static int mtk_gpio_get_direction(struct gpio_chip *chip, unsigned int gpio)
 	const struct mtk_pin_desc *desc;
 	int value, err;
 
-	if (gpio > hw->soc->npins)
+	if (gpio >= hw->soc->npins)
 		return -EINVAL;
 
 	desc = (const struct mtk_pin_desc *)&hw->soc->pins[gpio];
@@ -628,7 +628,7 @@ static int mtk_gpio_get(struct gpio_chip *chip, unsigned int gpio)
 	const struct mtk_pin_desc *desc;
 	int value, err;
 
-	if (gpio > hw->soc->npins)
+	if (gpio >= hw->soc->npins)
 		return -EINVAL;
 
 	desc = (const struct mtk_pin_desc *)&hw->soc->pins[gpio];
@@ -645,7 +645,7 @@ static void mtk_gpio_set(struct gpio_chip *chip, unsigned int gpio, int value)
 	struct mtk_pinctrl *hw = gpiochip_get_data(chip);
 	const struct mtk_pin_desc *desc;
 
-	if (gpio > hw->soc->npins)
+	if (gpio >= hw->soc->npins)
 		return;
 
 	desc = (const struct mtk_pin_desc *)&hw->soc->pins[gpio];
@@ -657,7 +657,7 @@ static int mtk_gpio_direction_input(struct gpio_chip *chip, unsigned int gpio)
 {
 	struct mtk_pinctrl *hw = gpiochip_get_data(chip);
 
-	if (gpio > hw->soc->npins)
+	if (gpio >= hw->soc->npins)
 		return -EINVAL;
 
 	return pinctrl_gpio_direction_input(chip->base + gpio);
@@ -668,7 +668,7 @@ static int mtk_gpio_direction_output(struct gpio_chip *chip, unsigned int gpio,
 {
 	struct mtk_pinctrl *hw = gpiochip_get_data(chip);
 
-	if (gpio > hw->soc->npins)
+	if (gpio >= hw->soc->npins)
 		return -EINVAL;
 
 	mtk_gpio_set(chip, gpio, value);