From: Dana Myers <dana.myers@oracle.com>
Date: Wed, 12 Jan 2011 01:09:31 +0000 (+0800)
Subject: ACPICA: Fix namespace race condition
X-Git-Tag: v2.6.38-rc2~28^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5d3131f5b0ae6303d042fd91ed9147ad4ae4bf6d;p=pandora-kernel.git

ACPICA: Fix namespace race condition

Fixes a race condition between method execution and namespace
walks that can possibly fault. Problem was apparently introduced
in version 20100528 as a result of a performance optimization
that reduces the number of namespace walks upon method exit
by using the delete_namespace_subtree function instead of the
delete_namespace_by_owner function used previously. Bug is in
the delete_namespace_subtree function.

Signed-off-by: Dana Myers <dana.myers@oracle.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Reviewed-by: Rafael Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
---

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