This fixes: 80264a8 driver: Call bus->remove instead of driver->remove
On mvebu it happens that:
Upon device shutdown, when iterating through the active device list,
the phy0 device is removed before mdio-mvebu. Then, when the mdio bus
device is removed, the phy0 device is removed again, here:
mdio_bus_remove(on mdio-mvebu)
mvebu_mdio_remove
mdiobus_unregister
unregister_device
mdio_bus_remove(on phy0)
Fix this by setting the mdio busses phy_map[phy->addr] to NULL when
unregistering the phy device, so that mdiobus_unregister no longer
finds a valid phy_device when iterating over the busses device list.
Reported-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
c05380f61e