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ACPICA: Fix memory leak when deleting thermal/processor objects 

Fixes a possible memory leak when thermal and processor objects
are deleted. Any associated notify handlers (and objects) were
not being deleted. Fiodor Suietov. BZ 506

http://www.acpica.org/bugzilla/show_bug.cgi?id=506

Signed-off-by: Fiodor Suietov <fiodor.f.suietov@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
This commit is contained in:
Bob Moore 2008-07-04 10:41:41 +08:00 committed by Andi Kleen
parent b635acec48
commit 2843ae7734
1 changed files with 11 additions and 2 deletions
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13
drivers/acpi/utilities/utdelete.c
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@ -135,6 +135,10 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
obj_pointer = object->package.elements; obj_pointer = object->package.elements;
break; break;
/*
* These objects have a possible list of notify handlers.
* Device object also may have a GPE block.
*/
case ACPI_TYPE_DEVICE: case ACPI_TYPE_DEVICE:
if (object->device.gpe_block) { if (object->device.gpe_block) {
@ -142,9 +146,14 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
gpe_block); gpe_block);
} }
/* Walk the handler list for this device */ /*lint -fallthrough */
handler_desc = object->device.handler; case ACPI_TYPE_PROCESSOR:
case ACPI_TYPE_THERMAL:
/* Walk the notify handler list for this object */
handler_desc = object->common_notify.handler;
while (handler_desc) { while (handler_desc) {
next_desc = handler_desc->address_space.next; next_desc = handler_desc->address_space.next;
acpi_ut_remove_reference(handler_desc); acpi_ut_remove_reference(handler_desc);