diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/gadget/ci13xxx_udc.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/drivers/usb/gadget/ci13xxx_udc.c b/drivers/usb/gadget/ci13xxx_udc.c index 03505cbae873..f20e861deebf 100644 --- a/drivers/usb/gadget/ci13xxx_udc.c +++ b/drivers/usb/gadget/ci13xxx_udc.c @@ -1794,18 +1794,20 @@ __acquires(mEp->lock) dbg_done(_usb_addr(mEp), mReq->ptr->token, retval); + if (!list_empty(&mEp->qh[mEp->dir].queue)) { + struct ci13xxx_req* mReqEnq; + + mReqEnq = list_entry(mEp->qh[mEp->dir].queue.next, + struct ci13xxx_req, queue); + _hardware_enqueue(mEp, mReqEnq); + } + if (!mReq->req.no_interrupt && mReq->req.complete != NULL) { spin_unlock(mEp->lock); mReq->req.complete(&mEp->ep, &mReq->req); spin_lock(mEp->lock); } - if (!list_empty(&mEp->qh[mEp->dir].queue)) { - mReq = list_entry(mEp->qh[mEp->dir].queue.next, - struct ci13xxx_req, queue); - _hardware_enqueue(mEp, mReq); - } - done: return retval; } @@ -2170,8 +2172,10 @@ static int ep_queue(struct usb_ep *ep, struct usb_request *req, mReq->req.actual = 0; list_add_tail(&mReq->queue, &mEp->qh[mEp->dir].queue); - retval = _hardware_enqueue(mEp, mReq); - if (retval == -EALREADY || retval == -EBUSY) { + if (list_is_singular(&mEp->qh[mEp->dir].queue)) + retval = _hardware_enqueue(mEp, mReq); + + if (retval == -EALREADY) { dbg_event(_usb_addr(mEp), "QUEUE", retval); retval = 0; } |