From: H. Peter Anvin <hpa@zytor.com>
Date: Fri, 2 Mar 2012 18:43:49 +0000 (-0800)
Subject: regset: Return -EFAULT, not -EIO, on host-side memory fault
X-Git-Tag: v3.2.10~77
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e34e9e8732893488893b9f8b4a449163b7fdfb19;p=pandora-kernel.git

regset: Return -EFAULT, not -EIO, on host-side memory fault

commit 5189fa19a4b2b4c3bec37c3a019d446148827717 upstream.

There is only one error code to return for a bad user-space buffer
pointer passed to a system call in the same address space as the
system call is executed, and that is EFAULT.  Furthermore, the
low-level access routines, which catch most of the faults, return
EFAULT already.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@hack.frob.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

Reading git-diff-tree failed