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Date: Thu, 16 Oct 2008 13:35:30 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: Andi Kleen <andi@firstfloor.org>
Cc: greg@kroah.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] SYSFS: Fix return values for sysdev_store_{ulong,int}
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On Mon, 13 Oct 2008 12:03:03 +0200
Andi Kleen <andi@firstfloor.org> wrote:

> SYSFS: Fix return values for sysdev_store_{ulong,int}
> 
> Always return the full size instead of the consumed
> length of the string in sysdev_store_{ulong,int}
> 
> This avoids EINVAL errors in some echo versions.

That sounds fairly serious.  Is this a regression or are those versions
of echo really ancient, or...?