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Commit f2874311 authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
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Merge "usb: dwc3: Don't queue the request if gadget is in suspended state"

parents 116b7811 7e2497c8

drivers/usb/dwc3/gadget.c

+11 −0
Original line number Diff line number Diff line
@@ -1638,6 +1638,14 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req) 
	return __dwc3_gadget_kick_transfer(dep);

}



static bool dwc3_gadget_is_suspended(struct dwc3 *dwc)

{

	if (atomic_read(&dwc->in_lpm) ||

			dwc->link_state == DWC3_LINK_STATE_U3)

		return true;

	return false;

}



static int dwc3_gadget_ep_queue(struct usb_ep *ep, struct usb_request *request,

	gfp_t gfp_flags)

{
@@ -1649,6 +1657,9 @@ static int dwc3_gadget_ep_queue(struct usb_ep *ep, struct usb_request *request, 


	int				ret;



	if (dwc3_gadget_is_suspended(dwc))

		return -EAGAIN;



	spin_lock_irqsave(&dwc->lock, flags);

	ret = __dwc3_gadget_ep_queue(dep, req);

	spin_unlock_irqrestore(&dwc->lock, flags);