net: tsec: Fix NULL access in case init_phy() fails

If the PHY is not recognized don't access phydev (NULL)
and return 0 to signal failure.

Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>

diff --git a/drivers/net/tsec.c b/drivers/net/tsec.c
index 79d656133adb4d50a7a28dfb529f81121db708ac..dcdba4ea827190759ea9ab0de43239a02024a096 100644 (file)
--- a/drivers/net/tsec.c
+++ b/drivers/net/tsec.c
@@ -597,6 +597,8 @@ static int init_phy(struct eth_device *dev)
                tsec_configure_serdes(priv);
 
        phydev = phy_connect(priv->bus, priv->phyaddr, dev, priv->interface);
                tsec_configure_serdes(priv);
 
        phydev = phy_connect(priv->bus, priv->phyaddr, dev, priv->interface);

+       if (!phydev)
+               return 0;

 
        phydev->supported &= supported;
        phydev->advertising = phydev->supported;
 
        phydev->supported &= supported;
        phydev->advertising = phydev->supported;