Make gr_ep_enable fail properly when a call requests a larger ep.maxpacket than ep.maxpacket_limit. Signed-off-by: Andreas Larsson <andreas@xxxxxxxxxxx> --- drivers/usb/gadget/gr_udc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/gadget/gr_udc.c b/drivers/usb/gadget/gr_udc.c index 55757fc..5423391 100644 --- a/drivers/usb/gadget/gr_udc.c +++ b/drivers/usb/gadget/gr_udc.c @@ -1548,6 +1548,10 @@ 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); -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html