diff --git a/drivers/input/joystick/n64joy.c b/drivers/input/joystick/n64joy.c
index 8bcc529942bc3e2d7adc42c1e0246e3e0ffbd093..9dbca366613e575983f785a1d2459f1d68a7f65d 100644
--- a/drivers/input/joystick/n64joy.c
+++ b/drivers/input/joystick/n64joy.c
@@ -252,8 +252,8 @@ static int __init n64joy_probe(struct platform_device *pdev)
 	mutex_init(&priv->n64joy_mutex);
 
 	priv->reg_base = devm_platform_ioremap_resource(pdev, 0);
-	if (!priv->reg_base) {
-		err = -EINVAL;
+	if (IS_ERR(priv->reg_base)) {
+		err = PTR_ERR(priv->reg_base);
 		goto fail;
 	}