linux-kernel - Re: [PATCH] sysfs: kill an extra put in sysfs_create

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Date:	Wed, 18 Jul 2007 21:38:40 +0530
From:	"Satyam Sharma" <satyam.sharma@...il.com>
To:	"Tejun Heo" <htejun@...il.com>
Cc:	"Gabriel C" <nix.or.die@...glemail.com>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	"Christoph Lameter" <clameter@....com>, gregkh@...e.de,
	miles.lane@...il.com
Subject: Re: [PATCH] sysfs: kill an extra put in sysfs_create_link() failure path

On 7/18/07, Tejun Heo <htejun@...il.com> wrote:
> Satyam Sharma wrote:
> > A trivial nit:
> >
> > The cleanup ignores the return of sysfs_addrm_finish() -- functions
> > such as those could and should be void-returning. It doesn't even
> > need to return an int for success / failure ... I went over it's code,
> > and it's obvious that the function just never fails!
> >
> > Returning the count of objects actually added / removed is quite
> > redundant too, because we return "actx->cnt" unconditionally
> > from inside it, and the caller can know that anyway, without
> > even calling it. Also, note that nowhere in the present code is
> > the return of that function ever being used in that sense (i.e. as
> > a "count") anyway ...
> >
> > So: best to just make it void-returning. That's what it is.
>
> Oh well, the function was made that way because that made the conversion
> easier when add/rm paths were consolidated using sysfs_addrm_cxt and
> friends.  So, if you see the detail as a problem, please submit a patch.
>  I dunno whether I would agree with the patch or not without seeing one.

Ok, I'll submit one then.

Thanks,
Satyam
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