diff mbox series

[1/2] usb: cdns3: gadget: link trb should point to next request

Message ID 20200214071414.7256-2-peter.chen@nxp.com (mailing list archive)
State Superseded
Headers show
Series usb: cdns3: two fixes for gadget | expand

Commit Message

Peter Chen Feb. 14, 2020, 7:14 a.m. UTC 
It has marked the dequeue trb as link trb, but its next segment
pointer is still itself, it causes the transfer can't go on. Fix
it by set its pointer as the trb address for the next request.

Fixes: f616c3bda47e ("usb: cdns3: Fix dequeue implementation")
Signed-off-by: Peter Chen <peter.chen@nxp.com>
---
 drivers/usb/cdns3/gadget.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/usb/cdns3/gadget.c b/drivers/usb/cdns3/gadget.c
index 736b0c6e27fe..1d8a2af35bb0 100644
--- a/drivers/usb/cdns3/gadget.c
+++ b/drivers/usb/cdns3/gadget.c
@@ -2550,7 +2550,7 @@  int cdns3_gadget_ep_dequeue(struct usb_ep *ep,
 	/* Update ring only if removed request is on pending_req_list list */
 	if (req_on_hw_ring) {
 		link_trb->buffer = TRB_BUFFER(priv_ep->trb_pool_dma +
-					      (priv_req->start_trb * TRB_SIZE));
+			((priv_req->end_trb + 1) * TRB_SIZE));
 		link_trb->control = (link_trb->control & TRB_CYCLE) |
 				    TRB_TYPE(TRB_LINK) | TRB_CHAIN;