From: Michal Simek <monstr@monstr.eu>
Date: Fri, 30 Mar 2012 06:21:38 +0000 (+0200)
Subject: microblaze: Fix stack usage in PAGE_SIZE copy_tofrom_user
X-Git-Tag: v3.4-rc2~34^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ac64a9caa55bdfd8d24784f25c68cb7919ddabe3;p=pandora-kernel.git

microblaze: Fix stack usage in PAGE_SIZE copy_tofrom_user

If access to user space failed we need to reconstruct
stack pointer and restore all register.

This patch fixed problem introduces by:
"microblaze: Add loop unrolling for PAGE in copy_tofrom_user"
(sha1: ebe211254bfa6295f4ab0b33c7c881bdfabbab60)

Signed-off-by: Michal Simek <monstr@monstr.eu>
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