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authorTomasz Nowicki <tomasz.nowicki@linaro.org>2013-11-21 08:19:55 +0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-11-21 16:47:04 +0400
commit794ba09bf30054c81832e61b49a64a56c95c5a9f (patch)
treef7635c97fac7d8a7a48437e2916402c84cbf90c8 /drivers/acpi/acpica
parent9a0a35972591f91167556b4a61673d08ef07f310 (diff)
downloadlinux-794ba09bf30054c81832e61b49a64a56c95c5a9f.tar.xz
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>
Diffstat (limited to 'drivers/acpi/acpica')
-rw-r--r--drivers/acpi/acpica/nsalloc.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/acpi/acpica/nsalloc.c b/drivers/acpi/acpica/nsalloc.c
index 243737363fb8..bc3f598257a2 100644
--- 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 */