The Octeon driver calls into PHYLIB which now checks for
net_device->dev.parent, so make sure we do set it before calling into
any MDIO/PHYLIB related function.

Fixes: ec988ad78ed6 ("phy: Don't increment MDIO bus refcount unless it's a 
different owner")
Reported-by: Aaro Koskinen <aaro.koski...@iki.fi>
Signed-off-by: Florian Fainelli <f.faine...@gmail.com>
---
 drivers/staging/octeon/ethernet.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/octeon/ethernet.c 
b/drivers/staging/octeon/ethernet.c
index 8130dfe89745..4971aa54756a 100644
--- a/drivers/staging/octeon/ethernet.c
+++ b/drivers/staging/octeon/ethernet.c
@@ -770,6 +770,7 @@ static int cvm_oct_probe(struct platform_device *pdev)
                        /* Initialize the device private structure. */
                        struct octeon_ethernet *priv = netdev_priv(dev);
 
+                       SET_NETDEV_DEV(dev, &pdev->dev);
                        dev->netdev_ops = &cvm_oct_pow_netdev_ops;
                        priv->imode = CVMX_HELPER_INTERFACE_MODE_DISABLED;
                        priv->port = CVMX_PIP_NUM_INPUT_PORTS;
@@ -816,6 +817,7 @@ static int cvm_oct_probe(struct platform_device *pdev)
                        }
 
                        /* Initialize the device private structure. */
+                       SET_NETDEV_DEV(dev, &pdev->dev);
                        priv = netdev_priv(dev);
                        priv->netdev = dev;
                        priv->of_node = cvm_oct_node_for_port(pip, interface,
-- 
2.9.3

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