Bind only modem AT command endpoint to option module.

Network interface is handled by upcoming gt_b3730 module.

Removed "GT-B3710" from comment, it is another modem with another USB ID.
Signed-off-by: Marius B. Kotsbak <marius@kotsbak.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/serial/option.c

@@ -972,7 +972,7 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD100) },
 	{ USB_DEVICE(CELOT_VENDOR_ID, CELOT_PRODUCT_CT680M) }, /* CT-650 CDMA 450 1xEVDO modem */
 	{ USB_DEVICE(ONDA_VENDOR_ID, ONDA_MT825UP) }, /* ONDA MT825UP modem */
-	{ USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_GT_B3730, USB_CLASS_CDC_DATA, 0x00, 0x00) }, /* Samsung GT-B3730/GT-B3710 LTE USB modem.*/
+	{ USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_GT_B3730, USB_CLASS_CDC_DATA, 0x00, 0x00) }, /* Samsung GT-B3730 LTE USB modem.*/
 	{ } /* Terminating entry */
 };
 MODULE_DEVICE_TABLE(usb, option_ids);
@@ -1109,6 +1109,12 @@ static int option_probe(struct usb_serial *serial,
 		serial->interface->cur_altsetting->desc.bInterfaceNumber == 1)
 		return -ENODEV;
 
+	/* Don't bind network interface on Samsung GT-B3730, it is handled by a separate module */
+	if (serial->dev->descriptor.idVendor == SAMSUNG_VENDOR_ID &&
+		serial->dev->descriptor.idProduct == SAMSUNG_PRODUCT_GT_B3730 &&
+		serial->interface->cur_altsetting->desc.bInterfaceClass != USB_CLASS_CDC_DATA)
+		return -ENODEV;
+
 	data = serial->private = kzalloc(sizeof(struct usb_wwan_intf_private), GFP_KERNEL);
 
 	if (!data)