linux-kernel - Re: Error returns not handled correctly by sysfs.c:subsys_attr

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Message-Id: <20071126203116.0c93cdb9.akpm@linux-foundation.org>
Date:	Mon, 26 Nov 2007 20:31:16 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	andrew.patterson@...com
Cc:	linux-kernel@...r.kernel.org, linux-hotplug@...r.kernel.org
Subject: Re: Error returns not handled correctly by
 sysfs.c:subsys_attr_store()

On Wed, 21 Nov 2007 15:16:59 -0700 Andrew Patterson <andrew.patterson@...com> wrote:

> The buf in fs/sysfs.c:subsys_attr_store() does not seem to be updated
> correctly when returning a negative value (indicating that an error
> condition has occurred) is returned.  If a negative value is returned,
> the next subsequent call to subsys_attr_store will have the contents of
> buf appended to the previous call.

subsys_attr_store() gets deleted by
http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/gregkh-01-driver/kset-kill-subsys-attr.patch

So maybe we will soon accidentally fix whatever-this-is?  Or maybe we will
faithfully maintain it.
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