Date: Tue, 05 Jan 2010 20:42:01 -0800 (PST)
Message-Id: <20100105.204201.34378986.davem@davemloft.net>
To: heiko.carstens@de.ibm.com
Cc: arjan@infradead.org, arnd@arndb.de, mingo@elte.hu,
       akpm@linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] sparc: copy_from_user() should not return -EFAULT
From: David Miller <davem@davemloft.net>
In-Reply-To: <20100105152215.GD5480@osiris.boeblingen.de.ibm.com>
References: <20100105131911.GC5480@osiris.boeblingen.de.ibm.com>
	<20100105053117.6a7c3377@infradead.org>
	<20100105152215.GD5480@osiris.boeblingen.de.ibm.com>
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From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Tue, 5 Jan 2010 16:22:15 +0100

> Subject: [PATCH] sparc: copy_from_user() should not return -EFAULT
> 
> From: Heiko Carstens <heiko.carstens@de.ibm.com>
> 
> Callers of copy_from_user() expect it to return the number of bytes
> it could not copy. In no case it is supposed to return -EFAULT.
> 
> In case of a detected buffer overflow just return the requested
> length. In addition one could think of a memset that would clear
> the size of the target object.
> 
> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

Applied, thanks again for catching this.
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