diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index 3ece59185d37..b1dcd2dd52e6 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -783,7 +783,7 @@ static void of_gpiochip_init_valid_mask(struct gpio_chip *chip)
 					   i, &start);
 		of_property_read_u32_index(np, "gpio-reserved-ranges",
 					   i + 1, &count);
-		if (start >= chip->ngpio || start + count >= chip->ngpio)
+		if (start >= chip->ngpio || start + count > chip->ngpio)
 			continue;
 
 		bitmap_clear(chip->valid_mask, start, count);