linux-kernel - Re: [PATCH] [man-pages] adjtimex.2: document clock

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20171121030459.swng4eyke34uf3sv@localhost>
Date:   Mon, 20 Nov 2017 19:05:00 -0800
From:   Richard Cochran <richardcochran@...il.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Michael Kerrisk <mtk.manpages@...il.com>,
        linux-kernel@...r.kernel.org, linux-api@...r.kernel.org,
        John Stultz <john.stultz@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Stephen Boyd <sboyd@...eaurora.org>
Subject: Re: [PATCH] [man-pages] adjtimex.2: document clock_adjtime

On Mon, Nov 20, 2017 at 11:53:02PM +0100, Arnd Bergmann wrote:
>  .B EINVAL
> +The
> +.I clk_id
> +specified is not supported on this system.

We return EINVAL when the clockid is not valid.  That can mean two
things.  Either the SYS-V style hard coded positive clockid is out of
range, or the dynamic negative clockid does not refer to a valid
instance of a clock object.

Dynamic clocks might also return ENODEV in case a hot-plugable device
(like USB) has disappeared after its character device was opened.

Thanks,
Richard