usb: gadget: ether: put_usb_function on unbind
Fix bugs introduced in
e41dcc3f30b9ac103b7eb0bc2abee46aee17779f
usb: gadget: ether: convert to new interface of f_ecm
f1ca60e3e48b08d4d7ac22eb6f5b0f25a41a3f3b
usb: gadget: ether: convert to new interface of f_eem
4e0783edbe535515dda8003304c7d12d5c1ffa0b
usb: gadget: ether: convert to new interface of f_subset
b4c3a41fe80067d6ee3440916380e7a9ff345660
usb: gadget: ether: convert to new interface of f_rndis
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>