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ACPICA: Add support to delete all objects attached to the root namespace node.

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This fix deletes any and all objects that have been attached to the
root node (via acpi_attach_data). Reported by Tomasz Nowicki.
ACPICA BZ 1026.

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>
This commit is contained in:
Bob Moore 2013-11-21 12:20:06 +08:00 committed by Rafael J. Wysocki
parent 794ba09bf3
commit 3f69fe1531
2 changed files with 16 additions and 8 deletions
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6
drivers/acpi/acpica/nsalloc.c
View file

@ -134,6 +134,12 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node)
obj_desc = next_desc;
}
/* Special case for the statically allocated root node */
if (node == acpi_gbl_root_node) {
return;
}
/* Now we can delete the node */
(void)acpi_os_release_object(acpi_gbl_namespace_cache, node);

18
drivers/acpi/acpica/nsutils.c
View file

@ -593,24 +593,26 @@ struct acpi_namespace_node *acpi_ns_validate_handle(acpi_handle handle)
void acpi_ns_terminate(void)
{
union acpi_operand_object *obj_desc;
acpi_status status;
ACPI_FUNCTION_TRACE(ns_terminate);
/*
* 1) Free the entire namespace -- all nodes and objects
*
* Delete all object descriptors attached to namepsace nodes
* Free the entire namespace -- all nodes and all objects
* attached to the nodes
*/
acpi_ns_delete_namespace_subtree(acpi_gbl_root_node);
/* Detach any objects attached to the root */
/* Delete any objects attached to the root node */
obj_desc = acpi_ns_get_attached_object(acpi_gbl_root_node);
if (obj_desc) {
acpi_ns_detach_object(acpi_gbl_root_node);
status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
return_VOID;
}
acpi_ns_delete_node(acpi_gbl_root_node);
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Namespace freed\n"));
return_VOID;
}