diff options
| author | Peter Chen <peter.chen@nxp.com> | 2020-01-07 12:15:01 +0800 |
|---|---|---|
| committer | Peter Chen <peter.chen@nxp.com> | 2020-01-20 17:23:29 +0800 |
| commit | 3e7c6dff3e9ee1d66e6beebad8d9e9f6b739483c (patch) | |
| tree | 333b5d3131ac409f37854f2752410b1a6a8e1b29 /drivers/usb/cdns3 | |
| parent | adb129da17716ee60d11c0cd6afd3ff5f3518007 (diff) | |
MLK-23181-2 usb: cdns3: gadget: add one missing condition for cdns3_request_handled
If the dequeue pointer advances to the first trb, but the priv_req->end_trb
is the last trb, we consider the trb this dequeue pointer points doesn't
belong to this request.
Reviewed-by: Jun Li <jun.li@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Diffstat (limited to 'drivers/usb/cdns3')
| -rw-r--r-- | drivers/usb/cdns3/gadget.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/usb/cdns3/gadget.c b/drivers/usb/cdns3/gadget.c index 744083e7595d..c7b163700bd4 100644 --- a/drivers/usb/cdns3/gadget.c +++ b/drivers/usb/cdns3/gadget.c @@ -840,9 +840,13 @@ static bool cdns3_request_handled(struct cdns3_endpoint *priv_ep, priv_ep->trb_pool_dma) / TRB_SIZE; /* current trb doesn't belong to this request */ - if ((priv_req->start_trb < priv_req->end_trb) && - (priv_ep->dequeue > priv_req->end_trb)) - goto finish; + if (priv_req->start_trb < priv_req->end_trb) { + if (priv_ep->dequeue > priv_req->end_trb) + goto finish; + + if (priv_ep->dequeue < priv_req->start_trb) + goto finish; + } if ((priv_req->start_trb > priv_req->end_trb) && (priv_ep->dequeue > priv_req->end_trb) && |