Commit 8c3d6092 authored Apr 27, 2016 by Vahram Aharonyan Committed by Felipe Balbi Apr 28, 2016

usb: dwc2: gadget: Check for ep0 in enable



Replaced the WARN_ON with a check and return of -EINVAL in the
dwc2_hsotg_ep_enable function if ep0 is passed in.

Signed-off-by: Vahram Aharonyan <vahrama@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

parent 7b9cc7a2

drivers/usb/dwc2/gadget.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -2631,7 +2631,10 @@ static int dwc2_hsotg_ep_enable(struct usb_ep *ep,
		desc->wMaxPacketSize, desc->bInterval);

		/* not to be called for EP0 */
		WARN_ON(index == 0);
		if (index == 0) {
		dev_err(hsotg->dev, "%s: called for EP 0\n", __func__);
		return -EINVAL;
		}

		dir_in = (desc->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ? 1 : 0;
		if (dir_in != hs_ep->dir_in) {

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