If we fail to register the mdio bus due to probe defer, we should not
print an error message. Just be silent in this case.
Signed-off-by: NJerome Brunet <jbrunet@baylibre.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>