this will fix crash bug when doing rmmod to the driver, this is because the
port_stop function get called later and it could access the device's registers.
Signed-off-by: NSaeed Bishara <saeed@marvell.com>
Acked-by: NMark Lord <mlord@pobox.com>
Acked-by: NTejun Heo <htejun@gmail.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>