From d26654e5f9cd27815ab5bc8148c826f3b960396c Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 20 Sep 2012 15:49:09 -0400
Subject: [PATCH] openrisk: fix altstack switching on sigreturn

do_sigaltstack() expects _userland_ address, TYVM...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Reading git-format-patch failed