Commit b38d27e5 authored Mar 27, 2014 by Andreas Larsson Committed by Felipe Balbi Apr 21, 2014

usb: gadget: gr_udc: Return error code when trying to set ep.maxpacket > ep.maxpacket_limit



Make gr_ep_enable fail properly when a call requests a larger ep.maxpacket than
ep.maxpacket_limit.

Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

parent 5bddbd72

drivers/usb/gadget/gr_udc.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -1542,6 +1542,10 @@ static int gr_ep_enable(struct usb_ep *_ep,
		} else if (max == 0) {
		dev_err(dev->dev, "Max payload cannot be set to 0\n");
		return -EINVAL;
		} else if (max > ep->ep.maxpacket_limit) {
		dev_err(dev->dev, "Requested max payload %d > limit %d\n",
		max, ep->ep.maxpacket_limit);
		return -EINVAL;
		}

		spin_lock(&ep->dev->lock);