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MLK-23349-3 usb: cdns3: gadget: link trb should point to next request 

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.

Reviewed-by: Jun Li <jun.li@nxp.com>
Fixes: f616c3bda4 ("usb: cdns3: Fix dequeue implementation")
Signed-off-by: Peter Chen <peter.chen@nxp.com>
5.4-rM2-2.2.x-imx-squashed
Peter Chen 2020-02-14 15:14:13 +08:00
parent ff01b0f10d
commit b201be8945
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GPG Key ID: 4859298150D671BB
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/cdns3/gadget.c
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@ -1878,7 +1878,7 @@ found:
/* 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;