linux-kernel - Re: [PATCH] Kconfig: add warning about permission of config file

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Message-ID: <BANLkTi=zVAMzbx7tXP2tOfBGE_hcMFzxOg@mail.gmail.com>
Date:	Tue, 24 May 2011 17:49:08 -0400
From:	Arnaud Lacombe <lacombar@...il.com>
To:	Hiromu Yakura <hiromu1996@...il.com>
Cc:	Michal Marek <mmarek@...e.cz>, linux-kbuild@...r.kernel.org,
	linux-kernel@...r.kernel.org, zippel@...ux-m68k.org
Subject: Re: [PATCH] Kconfig: add warning about permission of config file

Hi,

On Tue, May 24, 2011 at 4:46 PM, Hiromu Yakura <hiromu1996@...il.com> wrote:
> [...]
> conf_write() is called after the configure changed.
> So I don't think we should handle the failed case of conf_write()
> because the purpose of this patch is not to losing changes.
>
Then your patch is incomplete. only open(2) and write(2) can fail in
more than 30 different ways, you check 1.

 - Arnaud

ps: I am not even addressing the race-condition introduced by your patch...
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