From: Pavankumar Kondeti <pkondeti@codeaurora.org>
Date: Mon, 2 May 2011 06:26:31 +0000 (+0530)
Subject: USB: gadget: Use ep0out for control OUT data phase in ci13xxx_udc
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=76cd9cfb2e022d19bfc008a6e993e1e407034241;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

USB: gadget: Use ep0out for control OUT data phase in ci13xxx_udc

The current code queue the control OUT data request to ep0in instead of
ep0out.  Check ep0_dir and use the correct control endpoint.

Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/gadget/ci13xxx_udc.c b/drivers/usb/gadget/ci13xxx_udc.c
index 1b095cb59c9d..09c76a17a104 100644
--- a/drivers/usb/gadget/ci13xxx_udc.c
+++ b/drivers/usb/gadget/ci13xxx_udc.c
@@ -1843,6 +1843,7 @@ __releases(mEp->lock)
 __acquires(mEp->lock)
 {
 	struct ci13xxx_req *mReq, *mReqTemp;
+	struct ci13xxx_ep *mEpTemp = mEp;
 	int uninitialized_var(retval);
 
 	trace("%p", mEp);
@@ -1859,7 +1860,10 @@ __acquires(mEp->lock)
 		dbg_done(_usb_addr(mEp), mReq->ptr->token, retval);
 		if (mReq->req.complete != NULL) {
 			spin_unlock(mEp->lock);
-			mReq->req.complete(&mEp->ep, &mReq->req);
+			if ((mEp->type == USB_ENDPOINT_XFER_CONTROL) &&
+					mReq->req.length)
+				mEpTemp = &_udc->ep0in;
+			mReq->req.complete(&mEpTemp->ep, &mReq->req);
 			spin_lock(mEp->lock);
 		}
 	}
@@ -2248,11 +2252,15 @@ static int ep_queue(struct usb_ep *ep, struct usb_request *req,
 
 	spin_lock_irqsave(mEp->lock, flags);
 
-	if (mEp->type == USB_ENDPOINT_XFER_CONTROL &&
-	    !list_empty(&mEp->qh.queue)) {
-		_ep_nuke(mEp);
-		retval = -EOVERFLOW;
-		warn("endpoint ctrl %X nuked", _usb_addr(mEp));
+	if (mEp->type == USB_ENDPOINT_XFER_CONTROL) {
+		if (req->length)
+			mEp = (_udc->ep0_dir == RX) ?
+				&_udc->ep0out : &_udc->ep0in;
+		if (!list_empty(&mEp->qh.queue)) {
+			_ep_nuke(mEp);
+			retval = -EOVERFLOW;
+			warn("endpoint ctrl %X nuked", _usb_addr(mEp));
+		}
 	}
 
 	/* first nuke then test link, e.g. previous status has not sent */