Merge branch 'net-phy-Unbind-fixes'

Florian Fainelli says:

====================
net: phy: Unbind fixes

This patch series fixes a couple of issues with the unbinding of the PHY
drivers and then bringing down a network interface. The first is a NULL
pointer de-reference and the second was an incorrect warning being
triggered.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>