From: Shaohua Li <shaohua.li@intel.com>
Date: Mon, 20 Apr 2009 00:08:35 +0000 (+1000)
Subject: agp: zero pages before sending to userspace
X-Git-Tag: v2.6.30-rc3~40^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=59de2bebabc5027f93df999d59cc65df591c3e6e;p=pandora-kernel.git

agp: zero pages before sending to userspace

AGP pages might be mapped into userspace finally, so the pages should be
set to zero before userspace can use it. Otherwise there is potential
information leakage.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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