net: gem: unregister mdio bus if probe fails

If probe fails, the mdio bus isn't unregistered. Fix it.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
1 file changed