From: Pavankumar Kondeti <pkondeti@xxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
drivers/usb/gadget/ci13xxx_udc.c | 20 ++++++++++++++------
1 files changed, 14 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/gadget/ci13xxx_udc.c b/drivers/usb/gadget/ci13xxx_udc.c
index 1b095cb..09c76a1 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 */
--
1.7.4.2
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