ACPICA: Delete all attached data objects during namespace node deletion.

This fix updates namespace node deletion to delete the entire list
of attached objects (attached via acpi_attach_data) instead of
just one of the attached items. ACPICA BZ 1024.
Tomasz Nowicki (tomasz.nowicki@linaro.org).

Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/acpica/nsalloc.c b/drivers/acpi/acpica/nsalloc.c
index 2437373..bc3f598 100644 (file)
--- a/drivers/acpi/acpica/nsalloc.c
+++ b/drivers/acpi/acpica/nsalloc.c
@@ -106,6 +106,7 @@ struct acpi_namespace_node *acpi_ns_create_node(u32 name)
 void acpi_ns_delete_node(struct acpi_namespace_node *node)
 {
        union acpi_operand_object *obj_desc;
+       union acpi_operand_object *next_desc;
 
        ACPI_FUNCTION_NAME(ns_delete_node);
 
@@ -114,12 +115,13 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node)
        acpi_ns_detach_object(node);
 
        /*
-        * Delete an attached data object if present (an object that was created
-        * and attached via acpi_attach_data). Note: After any normal object is
-        * detached above, the only possible remaining object is a data object.
+        * Delete an attached data object list if present (objects that were
+        * attached via acpi_attach_data). Note: After any normal object is
+        * detached above, the only possible remaining object(s) are data
+        * objects, in a linked list.
         */
        obj_desc = node->object;
-       if (obj_desc && (obj_desc->common.type == ACPI_TYPE_LOCAL_DATA)) {
+       while (obj_desc && (obj_desc->common.type == ACPI_TYPE_LOCAL_DATA)) {
 
                /* Invoke the attached data deletion handler if present */
 
@@ -127,7 +129,9 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node)
                        obj_desc->data.handler(node, obj_desc->data.pointer);
                }
 
+               next_desc = obj_desc->common.next_object;
                acpi_ut_remove_reference(obj_desc);
+               obj_desc = next_desc;
        }
 
        /* Now we can delete the node */