linux-kernel - [019/244] USB option driver K3765/K4505 avoid CDC

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Date:	Wed, 28 Sep 2011 14:59:43 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Andrew Bird <ajb@...eresystems.co.uk>
Subject: [019/244] USB option driver K3765/K4505 avoid CDC_DATA interface

3.0-stable review patch.  If anyone has any objections, please let us know.

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

From: Andrew Bird <ajb@...eresystems.co.uk>

commit 6118514e8749105334f46ccec6faf9a439be6cf9 upstream.

Currently the Option driver avoids binding interface 1 on Huawei K3765
and K4505 broadband modems as it should be handled by the cdc_ether
driver instead. This patch ensures we don't bind the interface 2
on those devices as that is CDC_DATA.

Signed-off-by: Andrew Bird <ajb@...eresystems.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/usb/serial/option.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1235,7 +1235,8 @@ static int option_probe(struct usb_seria
 		(serial->dev->descriptor.idProduct == HUAWEI_PRODUCT_K3765 ||
 			serial->dev->descriptor.idProduct == HUAWEI_PRODUCT_K4505 ||
 			serial->dev->descriptor.idProduct == HUAWEI_PRODUCT_K4605) &&
-		serial->interface->cur_altsetting->desc.bInterfaceNumber == 1)
+		(serial->interface->cur_altsetting->desc.bInterfaceNumber == 1 ||
+			serial->interface->cur_altsetting->desc.bInterfaceNumber == 2))
 		return -ENODEV;
 
 	/* Don't bind network interface on Samsung GT-B3730, it is handled by a separate module */


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