net: emaclite: Report failures in mdio setup

Be more verbose when any problem happens.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index 919b983114e907242bc49ce64ba95eb00c3e2008..a16dc35089987b359db335b5837444a6306facdf 100644 (file)
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -852,8 +852,10 @@ static int xemaclite_mdio_setup(struct net_local *lp, struct device *dev)
        /* Don't register the MDIO bus if the phy_node or its parent node
         * can't be found.
         */
-       if (!np)
+       if (!np) {
+               dev_err(dev, "Failed to register mdio bus.\n");
                return -ENODEV;
+       }
 
        /* Enable the MDIO bus by asserting the enable bit in MDIO Control
         * register.
@@ -862,8 +864,10 @@ static int xemaclite_mdio_setup(struct net_local *lp, struct device *dev)
                 XEL_MDIOCTRL_MDIOEN_MASK);
 
        bus = mdiobus_alloc();
-       if (!bus)
+       if (!bus) {
+               dev_err(dev, "Failed to allocal mdiobus\n");
                return -ENOMEM;
+       }
 
        of_address_to_resource(np, 0, &res);
        snprintf(bus->id, MII_BUS_ID_SIZE, "%.8llx",
@@ -879,8 +883,10 @@ static int xemaclite_mdio_setup(struct net_local *lp, struct device *dev)
        lp->mii_bus = bus;
 
        rc = of_mdiobus_register(bus, np);
-       if (rc)
+       if (rc) {
+               dev_err(dev, "Failed to register mdio bus.\n");
                goto err_register;
+       }
 
        return 0;