diff mbox series

[3/6] xhci: Add check for invalid byte size error when UAS devices are connected.

Message ID 1542010889-8716-4-git-send-email-mathias.nyman@linux.intel.com (mailing list archive)
State Superseded
Headers show
Series xhci fixes for usb-linus | expand

Commit Message

Mathias Nyman Nov. 12, 2018, 8:21 a.m. UTC 
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 mbox series

Patch

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",