On Tue, 4 Sep 2018 11:44:26 +0900 Jaejoong Kim <climbbb.kim@xxxxxxxxx> wrote: > Many drivers with tty use the tty_stand_install(). But, there is no > need to handle the error, since it always returns 0. And what happens if another change means it can fail again. It's just a property of the current implementation that it can't. It used to fail. This seems to be a ton of unneccessary churn that will end up just having to be reversed again some day in the future. Alan