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authorSandeep Singh <sandeep.singh@amd.com>2018-11-09 17:21:19 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-11-09 08:31:08 -0800
commitd9193efba84fe4c4aa22a569fade5e6ca971f8af (patch)
tree22c14f49702610856ae1f115aebf837d11504b64 /drivers
parent1245374e9b8340fc255fd51b2015173a83050d03 (diff)
downloadtalos-op-linux-d9193efba84fe4c4aa22a569fade5e6ca971f8af.tar.gz
talos-op-linux-d9193efba84fe4c4aa22a569fade5e6ca971f8af.zip
xhci: Add check for invalid byte size error when UAS devices are connected.
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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/host/xhci-ring.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 80d464ea5a9a..730a6ecd85fc 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",
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