diff --git a/drivers/tty/serial/8250/8250_of.c b/drivers/tty/serial/8250/8250_of.c
index 1e67a7e4a5fd32e031ad29db382aa12a9a9929bf..160b8906d9b9cbb47e7f5459b23c604778e5eff5 100644
--- a/drivers/tty/serial/8250/8250_of.c
+++ b/drivers/tty/serial/8250/8250_of.c
@@ -136,8 +136,11 @@ static int of_platform_serial_setup(struct platform_device *ofdev,
 	}
 
 	info->rst = devm_reset_control_get_optional_shared(&ofdev->dev, NULL);
-	if (IS_ERR(info->rst))
+	if (IS_ERR(info->rst)) {
+		ret = PTR_ERR(info->rst);
 		goto err_dispose;
+	}
+
 	ret = reset_control_deassert(info->rst);
 	if (ret)
 		goto err_dispose;