net: ll_temac: Fix an NULL vs IS_ERR() check in temac_open()

The phy_connect() function doesn't return NULL pointers.  It returns
error pointers on error, so I have updated the check.

Fixes: 8425c41d1ef7 ("net: ll_temac: Extend support to non-device-tree platforms")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c
index ca95c72..fff3baf 100644 (file)
--- a/drivers/net/ethernet/xilinx/ll_temac_main.c
+++ b/drivers/net/ethernet/xilinx/ll_temac_main.c
@@ -927,9 +927,9 @@ static int temac_open(struct net_device *ndev)
        } else if (strlen(lp->phy_name) > 0) {
                phydev = phy_connect(lp->ndev, lp->phy_name, temac_adjust_link,
                                     lp->phy_interface);
-               if (!phydev) {
+               if (IS_ERR(phydev)) {
                        dev_err(lp->dev, "phy_connect() failed\n");
-                       return -ENODEV;
+                       return PTR_ERR(phydev);
                }
                phy_start(phydev);
        }