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usb: cdnsp: Fix lack of removing request from pending list.

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Patch fixes lack of removing request from ep->pending_list on failure
of the stop endpoint command. Driver even after failing this command
must remove request from ep->pending_list.
Without this fix driver can stuck in cdnsp_gadget_ep_disable function
in loop:
        while (!list_empty(&pep->pending_list)) {
                preq = next_request(&pep->pending_list);
                cdnsp_ep_dequeue(pep, preq);
        }

Fixes: 3d82904559 ("usb: cdnsp: cdns3 Add main part of Cadence USBSSP DRD Driver")
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Link: https://lore.kernel.org/r/20210420042813.34917-1-pawell@gli-login.cadence.com
Signed-off-by: Peter Chen <peter.chen@kernel.org>
This commit is contained in:
Pawel Laszczak 2021-04-20 06:28:13 +02:00 committed by Peter Chen
parent 07adc02254
commit 3b414d1b01
1 changed files with 7 additions and 7 deletions
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14
drivers/usb/cdns3/cdnsp-gadget.c
View File

@ -422,17 +422,17 @@ unmap:
int cdnsp_ep_dequeue(struct cdnsp_ep *pep, struct cdnsp_request *preq)
{
struct cdnsp_device *pdev = pep->pdev;
int ret;
int ret_stop = 0;
int ret_rem;
trace_cdnsp_request_dequeue(preq);
if (GET_EP_CTX_STATE(pep->out_ctx) == EP_STATE_RUNNING) {
ret = cdnsp_cmd_stop_ep(pdev, pep);
if (ret)
return ret;
}
if (GET_EP_CTX_STATE(pep->out_ctx) == EP_STATE_RUNNING)
ret_stop = cdnsp_cmd_stop_ep(pdev, pep);
return cdnsp_remove_request(pdev, preq, pep);
ret_rem = cdnsp_remove_request(pdev, preq, pep);
return ret_rem ? ret_rem : ret_stop;
}
static void cdnsp_zero_in_ctx(struct cdnsp_device *pdev)