diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 0367f510f81a..d9199151a83e 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -304,7 +304,7 @@ static int mtk_mdio_init(struct mtk_eth *eth)
 	}
 
 	if (!of_device_is_available(mii_np)) {
-		ret = 0;
+		ret = -ENODEV;
 		goto err_put_node;
 	}