From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.kernel.org ([198.145.29.99]:51464 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728252AbeKJCPB (ORCPT ); Fri, 9 Nov 2018 21:15:01 -0500 Subject: patch "xhci: Add check for invalid byte size error when UAS devices are" added to usb-linus To: sandeep.singh@amd.com, Nehal-bakulchandra.Shah@amd.com, Shyam-sundar.S-k@amd.com, gregkh@linuxfoundation.org, mathias.nyman@linux.intel.com, stable@vger.kernel.org From: Date: Fri, 09 Nov 2018 08:33:41 -0800 Message-ID: <154178122114692@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled xhci: Add check for invalid byte size error when UAS devices are to my usb git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git in the usb-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. >>From d9193efba84fe4c4aa22a569fade5e6ca971f8af Mon Sep 17 00:00:00 2001 From: Sandeep Singh Date: Fri, 9 Nov 2018 17:21:19 +0200 Subject: 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: Signed-off-by: Sandeep Singh cc: Nehal Shah cc: Shyam Sundar S K Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- 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 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", -- 2.19.1