From: Michael Grzeschik Date: Wed, 1 Jul 2020 18:24:53 +0000 (+0200) Subject: usb: dwc3: gadget: when the started list is empty stop the active xfer X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f5e46aa4a124bfac34a770c4cfe5023de99380d4;p=linux.git usb: dwc3: gadget: when the started list is empty stop the active xfer When we have nothing left to be queued after handling the last trb we have to stop the current transfer. This way we can ensure that the next request will be queued with a new and valid timestamp and will not directly run into an missed xfer. Reviewed-by: Thinh Nguyen Signed-off-by: Michael Grzeschik Signed-off-by: Felipe Balbi --- diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 779b173739294..e44bfc3b5096d 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2738,7 +2738,9 @@ static bool dwc3_gadget_endpoint_trbs_complete(struct dwc3_ep *dep, if (dep->flags & DWC3_EP_END_TRANSFER_PENDING) goto out; - if (status == -EXDEV && list_empty(&dep->started_list)) + if (usb_endpoint_xfer_isoc(dep->endpoint.desc) && + list_empty(&dep->started_list) && + (list_empty(&dep->pending_list) || status == -EXDEV)) dwc3_stop_active_transfer(dep, true, true); else if (dwc3_gadget_ep_should_continue(dep)) if (__dwc3_gadget_kick_transfer(dep) == 0)