Re: [PATCH] sparc: copy_from_user() should not return -EFAULT

From: David Miller
Date: Tue Jan 05 2010 - 23:42:08 EST


From: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Date: Tue, 5 Jan 2010 16:22:15 +0100

> Subject: [PATCH] sparc: copy_from_user() should not return -EFAULT
>
> From: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
>
> 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@xxxxxxxxxx>

Applied, thanks again for catching this.
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