From: Sandeep Singh sandeep.singh@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: stable@vger.kernel.org Signed-off-by: Sandeep Singh sandeep.singh@amd.com cc: Nehal Shah Nehal-bakulchandra.Shah@amd.com cc: Shyam Sundar S K Shyam-sundar.S-k@amd.com Signed-off-by: Mathias Nyman mathias.nyman@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",