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authorDana Myers <dana.myers@oracle.com>2011-01-12 01:09:31 (GMT)
committerLen Brown <len.brown@intel.com>2011-01-19 04:47:41 (GMT)
commit5d3131f5b0ae6303d042fd91ed9147ad4ae4bf6d (patch)
tree1d2ebc9b9aa6b4644247cd230d16d889f7daf4a4 /drivers/acpi/acpica/hwregs.c
parentbe33b76a974cdb4ceadc1a12fb79cc97bcfeea37 (diff)
downloadlinux-fsl-qoriq-5d3131f5b0ae6303d042fd91ed9147ad4ae4bf6d.tar.xz
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>
Diffstat (limited to 'drivers/acpi/acpica/hwregs.c')
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