4.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sandeep Singh <sandeep.si...@amd.com>
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: <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>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
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
@@ -2335,6 +2335,7 @@ 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",
