diff --git a/drivers/gpio/kw_gpio.c b/drivers/gpio/kw_gpio.c
index 56383c2875aead5630e4cb123fb9c0cb769905d1..2de179e827afcd55a2eeeffa8fd664177dfb9bc4 100644
--- a/drivers/gpio/kw_gpio.c
+++ b/drivers/gpio/kw_gpio.c
@@ -109,7 +109,7 @@ void kw_gpio_set_valid(unsigned pin, int mode)
  */
 int kw_gpio_direction_input(unsigned pin)
 {
-	if (!kw_gpio_is_valid(pin, GPIO_INPUT_OK))
+	if (kw_gpio_is_valid(pin, GPIO_INPUT_OK) != 0)
 		return 1;
 
 	/* Configure GPIO direction. */