4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Oliver Neukum <oneu...@suse.com>

commit df1cc78a52491f71d8170d513d0f6f114faa1bda upstream.

This devices drops random bytes from messages if you talk to it
too fast.

Signed-off-by: Oliver Neukum <oneu...@suse.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/usb/class/cdc-acm.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1695,6 +1695,9 @@ static const struct usb_device_id acm_id
        { USB_DEVICE(0x0ace, 0x1611), /* ZyDAS 56K USB MODEM - new version */
        .driver_info = SINGLE_RX_URB, /* firmware bug */
        },
+       { USB_DEVICE(0x11ca, 0x0201), /* VeriFone Mx870 Gadget Serial */
+       .driver_info = SINGLE_RX_URB,
+       },
        { USB_DEVICE(0x22b8, 0x7000), /* Motorola Q Phone */
        .driver_info = NO_UNION_NORMAL, /* has no union descriptor */
        },


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