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xhci: Don't always run the default stop endpoint command completion handler

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The default stop endpoint completion handler will give back cancelled
URBs, and clean, or move past those canceller TRBs on the ring.

This is not always the preferred action.

If the stop endpoint command issuer is waiting for a completion
skip the default handler and just call the completion.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mathias Nyman 2018-03-16 16:33:02 +02:00 • committed by Greg Kroah-Hartman
parent a400efe455
commit a38fe33889
1 changed files with 2 additions and 1 deletions
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3
drivers/usb/host/xhci-ring.c
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@ -1436,7 +1436,8 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
case TRB_STOP_RING:
WARN_ON(slot_id != TRB_TO_SLOT_ID(
le32_to_cpu(cmd_trb->generic.field[3])));
xhci_handle_cmd_stop_ep(xhci, slot_id, cmd_trb, event);
if (!cmd->completion)
xhci_handle_cmd_stop_ep(xhci, slot_id, cmd_trb, event);
break;
case TRB_SET_DEQ:
WARN_ON(slot_id != TRB_TO_SLOT_ID(