diff options
| author | Mathias Nyman <mathias.nyman@linux.intel.com> | 2017-03-28 15:55:29 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-03-29 12:13:49 +0200 |
| commit | 0ab2881a406b9fd46224a3e8253bbc0141b4f844 (patch) | |
| tree | 9d76cab2f9b5e06fc230ec5679f2c39590818417 /drivers/usb | |
| parent | b07c12517f2aed0add8ce18146bb426b14099392 (diff) | |
xhci: Set URB actual length for stopped control transfers
A control transfer that stopped at the status stage incorrectly
warned about a "unexpected TRB Type 4", and did not set the
transferred actual_length for the URB.
The URB actual_length for control transfers should contain the
bytes transferred in the data stage.
Bytes of a partially sent setup stage and missing bytes from
status stage should be left out.
Cc: <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index d9936c771fa0..a3309aa02993 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1989,6 +1989,9 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td, case TRB_NORMAL: td->urb->actual_length = requested - remaining; goto finish_td; + case TRB_STATUS: + td->urb->actual_length = requested; + goto finish_td; default: xhci_warn(xhci, "WARN: unexpected TRB Type %d\n", trb_type); |