diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index dee7d5f..6e7643f 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -1274,9 +1274,9 @@
 		return ret;
 
 	info->pctl_dev = pinctrl_register(ctrldesc, &pdev->dev, info);
-	if (!info->pctl_dev) {
+	if (IS_ERR(info->pctl_dev)) {
 		dev_err(&pdev->dev, "could not register pinctrl driver\n");
-		return -EINVAL;
+		return PTR_ERR(info->pctl_dev);
 	}
 
 	for (bank = 0; bank < info->ctrl->nr_banks; ++bank) {