From: Sandeep Singh <sandeep.si...@amd.com> 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: <sta...@vger.kernel.org> Signed-off-by: Sandeep Singh <sandeep.si...@amd.com> cc: Nehal Shah <nehal-bakulchandra.s...@amd.com> cc: Shyam Sundar S K <shyam-sundar....@amd.com> Signed-off-by: Mathias Nyman <mathias.ny...@linux.intel.com> --- drivers/usb/host/xhci-ring.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 80d464e..730a6ec 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -2273,6 +2273,7 @@ static int handle_tx_event(struct xhci_hcd *xhci, 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", -- 2.7.4