A zero pointer deref on priv->phydev->link was causing oops on our systems.
Might be related to improper configuration but we should fail gracefully here
;-)
Signed-off-by: Sebastian Poehn <sebastian.po...@googlemail.com>
---
diff --git a/drivers/staging/octeon/ethernet-mdio.c
b/drivers/staging/octeon/ethernet-mdio.c
index 83b1030..bc8c503 100644
--- a/drivers/staging/octeon/ethernet-mdio.c
+++ b/drivers/staging/octeon/ethernet-mdio.c
@@ -121,6 +121,9 @@ static void cvm_oct_adjust_link(struct net_device *dev)
struct octeon_ethernet *priv = netdev_priv(dev);
cvmx_helper_link_info_t link_info;
+ if(!priv->phydev)
+ return ;
+
if (priv->last_link != priv->phydev->link) {
priv->last_link = priv->phydev->link;
link_info.u64 = 0;
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