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>

diff --git a/drivers/acpi/utilities/utdelete.c b/drivers/acpi/utilities/utdelete.c
index c5c791a575c9203f63c0a44ad07ad93487282643..42609d3a8aa9db23f3852743f767ee1641b631af 100644 (file)
--- a/drivers/acpi/utilities/utdelete.c
+++ b/drivers/acpi/utilities/utdelete.c
@@ -135,6 +135,10 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
                obj_pointer = object->package.elements;
                break;
 
+               /*
+                * These objects have a possible list of notify handlers.
+                * Device object also may have a GPE block.
+                */
        case ACPI_TYPE_DEVICE:
 
                if (object->device.gpe_block) {
@@ -142,9 +146,14 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
                                                       gpe_block);
                }
 
-               /* Walk the handler list for this device */
+               /*lint -fallthrough */
+
+       case ACPI_TYPE_PROCESSOR:
+       case ACPI_TYPE_THERMAL:
+
+               /* Walk the notify handler list for this object */
 
-               handler_desc = object->device.handler;
+               handler_desc = object->common_notify.handler;
                while (handler_desc) {
                        next_desc = handler_desc->address_space.next;
                        acpi_ut_remove_reference(handler_desc);