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

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>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Wolfgang Grandegger 2017-12-13 19:52:23 +01:00 • committed by Marc Kleine-Budde
commit d5b42e6607