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[ Upstream commitb7a14297f1] This patch add error path for cgw_module_init to avoid possible crash if some error occurs. Fixes:c1aabdf379("can-gw: add netlink based CAN routing") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sasha Levin <sashal@kernel.org>