4.19-stable review patch. If anyone has any objections, please let me know.
------------------ From: Sandeep Singh <[email protected]> commit d9193efba84fe4c4aa22a569fade5e6ca971f8af upstream. Observed "TRB completion code (27)" error which corresponds to Stopped - Length Invalid error(xhci spec section 4.17.4) while connecting USB to SATA bridge. Looks like this case was not considered when the following patch[1] was committed. Hence adding this new check which can prevent the invalid byte size error. [1] ade2e3a xhci: handle transfer events without TRB pointer Cc: <[email protected]> Signed-off-by: Sandeep Singh <[email protected]> cc: Nehal Shah <[email protected]> cc: Shyam Sundar S K <[email protected]> Signed-off-by: Mathias Nyman <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/usb/host/xhci-ring.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -2254,6 +2254,7 @@ static int handle_tx_event(struct xhci_h goto cleanup; case COMP_RING_UNDERRUN: case COMP_RING_OVERRUN: + case COMP_STOPPED_LENGTH_INVALID: goto cleanup; default: xhci_err(xhci, "ERROR Transfer event for unknown stream ring slot %u ep %u\n",
