tree b4f76788c83c4a0a8ae8e01e349e02055eb01bf9
parent 7252f1bfd4bc97ec4b5fa7adaf3a1a45c325635c
author Peter Chen <peter.chen@freescale.com> 1425609362 +0800
committer Felipe Balbi <balbi@ti.com> 1426782346 -0500

usb: udc: store usb_udc pointer in struct usb_gadget

Instead of iterate to find usb_udc according to usb_gadget, this
way is easier.

Alan Stern suggests this way too:
http://marc.info/?l=linux-usb&m=142168496528894&w=2

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>