Re: [PATCH net-next v2 1/3] net: phy: xgmiitorgmii: Check phy_driver ready before accessing

From: Brandon Maier <redacted>
Date: Tue, 26 Jun 2018 12:50:48 -0500

Since a phy_device is added to the global mdio_bus list during
phy_device_register(), but a phy_device's phy_driver doesn't get
attached until phy_probe(). It's possible of_phy_find_device() in
xgmiitorgmii will return a valid phy with a NULL phy_driver. Leading to
a NULL pointer access during the memcpy().

Fixes this Oops:

 ...

Signed-off-by: Brandon Maier <redacted>

Applied.