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 <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/host/xhci-ring.c

···
 		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;