1 files changed, 9 insertions, 18 deletions

diff --git a/drivers/usb/cdns3/cdns3-gadget.c b/drivers/usb/cdns3/cdns3-gadget.c
index 1f3b4a142212..d6d515d598dc 100644
--- a/drivers/usb/cdns3/cdns3-gadget.c
+++ b/drivers/usb/cdns3/cdns3-gadget.c
@@ -337,19 +337,6 @@ static void cdns3_ep_inc_deq(struct cdns3_endpoint *priv_ep)
 	cdns3_ep_inc_trb(&priv_ep->dequeue, &priv_ep->ccs, priv_ep->num_trbs);
 }
 
-static void cdns3_move_deq_to_next_trb(struct cdns3_request *priv_req)
-{
-	struct cdns3_endpoint *priv_ep = priv_req->priv_ep;
-	int current_trb = priv_req->start_trb;
-
-	while (current_trb != priv_req->end_trb) {
-		cdns3_ep_inc_deq(priv_ep);
-		current_trb = priv_ep->dequeue;
-	}
-
-	cdns3_ep_inc_deq(priv_ep);
-}
-
 /**
  * cdns3_allow_enable_l1 - enable/disable permits to transition to L1.
  * @priv_dev: Extended gadget object
@@ -1517,10 +1504,11 @@ static void cdns3_transfer_completed(struct cdns3_device *priv_dev,
 
 		trb = priv_ep->trb_pool + priv_ep->dequeue;
 
-		/* Request was dequeued and TRB was changed to TRB_LINK. */
-		if (TRB_FIELD_TO_TYPE(le32_to_cpu(trb->control)) == TRB_LINK) {
+		/* The TRB was changed as link TRB, and the request was handled at ep_dequeue */
+		while (TRB_FIELD_TO_TYPE(le32_to_cpu(trb->control)) == TRB_LINK) {
 			trace_cdns3_complete_trb(priv_ep, trb);
-			cdns3_move_deq_to_next_trb(priv_req);
+			cdns3_ep_inc_deq(priv_ep);
+			trb = priv_ep->trb_pool + priv_ep->dequeue;
 		}
 
 		if (!request->stream_id) {
@@ -2696,6 +2684,7 @@ int __cdns3_gadget_ep_clear_halt(struct cdns3_endpoint *priv_ep)
 	struct usb_request *request;
 	struct cdns3_request *priv_req;
 	struct cdns3_trb *trb = NULL;
+	struct cdns3_trb trb_tmp;
 	int ret;
 	int val;
 
@@ -2705,8 +2694,10 @@ int __cdns3_gadget_ep_clear_halt(struct cdns3_endpoint *priv_ep)
 	if (request) {
 		priv_req = to_cdns3_request(request);
 		trb = priv_req->trb;
-		if (trb)
+		if (trb) {
+			trb_tmp = *trb;
 			trb->control = trb->control ^ cpu_to_le32(TRB_CYCLE);
+		}
 	}
 
 	writel(EP_CMD_CSTALL | EP_CMD_EPRST, &priv_dev->regs->ep_cmd);
@@ -2721,7 +2712,7 @@ int __cdns3_gadget_ep_clear_halt(struct cdns3_endpoint *priv_ep)
 
 	if (request) {
 		if (trb)
-			trb->control = trb->control ^ cpu_to_le32(TRB_CYCLE);
+			*trb = trb_tmp;
 
 		cdns3_rearm_transfer(priv_ep, 1);
 	}