Commits
Felipe Balbi committed 29fc1aa454d
usb: host: xhci: handle COMP_STOP from SETUP phase too Stop Endpoint command can come at any point and we have no control of that. We should make sure to handle COMP_STOP on SETUP phase as well, otherwise urb->actual_length might be set to negative values in some occasions such as below: urb->length = 4; build_control_transfer_td_for(urb, ep); stop_endpoint(ep); COMP_STOP: [...] urb->actual_length = urb->length - trb->length; trb->length is 8 for SETUP stage (8 control request bytes), so actual_length would be set to -4 in this case. While doing that, also make sure to use TRB_TYPE field of the actual TRB instead of matching pointers to figure out in which stage of the control transfer we got our completion event. Cc: <stable@vger.kernel.org> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>