tree 1d2ebc9b9aa6b4644247cd230d16d889f7daf4a4
parent be33b76a974cdb4ceadc1a12fb79cc97bcfeea37
author Dana Myers <dana.myers@oracle.com> 1294794571 +0800
committer Len Brown <len.brown@intel.com> 1295412461 -0500

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>