> > +static int netsec_register_mdio(struct netsec_priv *priv, u32 phy_addr)
> > +{
> > + struct mii_bus *bus;
> > + int ret;
> > +
> > + bus = devm_mdiobus_alloc(priv->dev);
> > + if (!bus)
> > + return -ENOMEM;
> > +
> > + snprintf(bus->id, MII_BUS_ID_SIZE, "%s", dev_name(priv->dev));
> > + bus->priv = priv;
> > + bus->name = "SNI NETSEC MDIO";
> > + bus->read = netsec_phy_read;
> > + bus->write = netsec_phy_write;
> > + bus->parent = priv->dev;
> > + priv->mii_bus = bus;
> > +
> > + if (dev_of_node(priv->dev)) {
> > + ret = of_mdiobus_register(bus, dev_of_node(priv->dev));
> > + if (ret) {
> > + dev_err(priv->dev, "mdiobus register err(%d)\n", ret);
> > + return ret;
> > + }
> > + } else {
> > + /* Mask out all PHYs from auto probing. */
> > + bus->phy_mask = ~0;
> > + ret = mdiobus_register(bus);
> > + if (ret) {
> > + dev_err(priv->dev, "mdiobus register err(%d)\n", ret);
> > + return ret;
> > + }
> > +
> > + priv->phydev = get_phy_device(priv->mii_bus, phy_addr, false);
> > + if (IS_ERR(priv->phydev)) {
> > + ret = PTR_ERR(priv->phydev);
> > + dev_err(priv->dev, "get_phy_device err(%d)\n", ret);
> > + priv->phydev = NULL;
> > + return -ENODEV;
> > + }
> > +
> > + ret = phy_device_register(priv->phydev);
> > + if (ret)
> > + dev_err(priv->dev,
> > + "phy_device_register err(%d)\n", ret);
You should unregister the mdio bus here.
> > + }
> > +
> > + return ret;
> > +}
Andrew
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