USB: xhci: Handle babble errors on transfers.

Pass back a babble error when this error code is seen in the transfer event TRB.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 1fc0decfa0ac89caeeb9afcba2fee083b032d5c2..0903e98989ec5ae1c8df115c6febbb22e08b5eb3 100644 (file)
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -876,6 +876,10 @@ static int handle_tx_event(struct xhci_hcd *xhci,
                xhci_warn(xhci, "WARN: transfer error on endpoint\n");
                status = -EPROTO;
                break;
+       case COMP_BABBLE:
+               xhci_warn(xhci, "WARN: babble error on endpoint\n");
+               status = -EOVERFLOW;
+               break;
        case COMP_DB_ERR:
                xhci_warn(xhci, "WARN: HC couldn't access mem fast enough\n");
                status = -ENOSR;