This is a note to let you know that I've just added the patch titled

can: gs_usb: fix return value of the "set_bittiming" callback

to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: can-gs_usb-fix-return-value-of-the-set_bittiming-callback.patch and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From d5b42e6607661b198d8b26a0c30969605b1bf5c7 Mon Sep 17 00:00:00 2001

From: Wolfgang Grandegger wg@grandegger.com Date: Wed, 13 Dec 2017 19:52:23 +0100 Subject: can: gs_usb: fix return value of the "set_bittiming" callback

From: Wolfgang Grandegger wg@grandegger.com

commit d5b42e6607661b198d8b26a0c30969605b1bf5c7 upstream.

The "set_bittiming" callback treats a positive return value as error! For that reason "can_changelink()" will quit silently after setting the bittiming values without processing ctrlmode, restart-ms, etc.

Signed-off-by: Wolfgang Grandegger wg@grandegger.com Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/net/can/usb/gs_usb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/can/usb/gs_usb.c +++ b/drivers/net/can/usb/gs_usb.c @@ -449,7 +449,7 @@ static int gs_usb_set_bittiming(struct n dev_err(netdev->dev.parent, "Couldn't set bittimings (err=%d)", rc);

- return rc; + return (rc > 0) ? 0 : rc; }

static void gs_usb_xmit_callback(struct urb *urb)

Patches currently in stable-queue which might be from wg@grandegger.com are

queue-4.14/can-gs_usb-fix-return-value-of-the-set_bittiming-callback.patch