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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Oliver Neukum <oneukum@suse.com>
Subject: [PATCH 4.14 136/156] CDC-ACM: apply quirk for card reader
Date:   Fri,  2 Feb 2018 17:58:37 +0100
Message-Id: <20180202140846.536479097@linuxfoundation.org>
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4.14-stable review patch.  If anyone has any objections, please let me know.

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

From: Oliver Neukum <oneukum@suse.com>

commit df1cc78a52491f71d8170d513d0f6f114faa1bda upstream.

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

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@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
@@ -1765,6 +1765,9 @@ 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 */
 	},