diff --git a/drivers/input/keyboard/gpio_keys_polled.c b/drivers/input/keyboard/gpio_keys_polled.c
index 097d7216d98ee4e4d394726e9d4c9743067d14f8..c6dc644aa5806b37cb4e0dcbbc6217d915e8a562 100644
--- a/drivers/input/keyboard/gpio_keys_polled.c
+++ b/drivers/input/keyboard/gpio_keys_polled.c
@@ -246,7 +246,7 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)
 		 * convert it to descriptor.
 		 */
 		if (!button->gpiod && gpio_is_valid(button->gpio)) {
-			unsigned flags = 0;
+			unsigned flags = GPIOF_IN;
 
 			if (button->active_low)
 				flags |= GPIOF_ACTIVE_LOW;