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xhci: Return correct number of tranferred bytes for stalled control endpoints 

Fix the xhci driver from bluntly setting the transferred length to 0 if
we get a STALL on anything else than the data stage of a control transfer.

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 2015-05-29 17:01:53 +03:00 committed by Greg Kroah-Hartman
parent 41485a90d5
commit 22ae47e65e
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/host/xhci-ring.c
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@ -1934,7 +1934,7 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td,
td->urb->actual_length =
td->urb->transfer_buffer_length -
EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
else
else if (!td->urb_length_set)
td->urb->actual_length = 0;
return finish_td(xhci, td, event_trb, event, ep, status, false);