[patch 1/2 net-next] mediatek: checking for IS_ERR() instead of NULL

[Dan Carpenter]

of_phy_connect() returns NULL on error, it never returns error pointers.

Fixes: 656e705243fd ('net-next: mediatek: add support for MT7623 ethernet')
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c 
b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index ba3afa5..9759fe5 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -186,9 +186,9 @@ static int mtk_phy_connect_node(struct mtk_eth *eth, struct 
mtk_mac *mac,
 
        phydev = of_phy_connect(eth->netdev[mac->id], phy_node,
                                mtk_phy_link_adjust, 0, phy_mode);
-       if (IS_ERR(phydev)) {
+       if (!phydev) {
                dev_err(eth->dev, "could not connect to PHY\n");
-               return PTR_ERR(phydev);
+               return -ENODEV;
        }
 
        dev_info(eth->dev,