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path: root/drivers/acpi/acpica/exoparg1.c
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Diffstat (limited to 'drivers/acpi/acpica/exoparg1.c')
-rw-r--r--drivers/acpi/acpica/exoparg1.c25
1 files changed, 19 insertions, 6 deletions
diff --git a/drivers/acpi/acpica/exoparg1.c b/drivers/acpi/acpica/exoparg1.c
index e327349675cd..f787651348c1 100644
--- a/drivers/acpi/acpica/exoparg1.c
+++ b/drivers/acpi/acpica/exoparg1.c
@@ -921,13 +921,26 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
* This is a deref_of (object_reference)
* Get the actual object from the Node (This is the dereference).
* This case may only happen when a local_x or arg_x is
- * dereferenced above.
+ * dereferenced above, or for references to device and
+ * thermal objects.
*/
- return_desc = acpi_ns_get_attached_object((struct
- acpi_namespace_node
- *)
- operand[0]);
- acpi_ut_add_reference(return_desc);
+ switch (((struct acpi_namespace_node *)operand[0])->
+ type) {
+ case ACPI_TYPE_DEVICE:
+ case ACPI_TYPE_THERMAL:
+
+ /* These types have no node subobject, return the NS node */
+
+ return_desc = operand[0];
+ break;
+
+ default:
+ /* For most types, get the object attached to the node */
+
+ return_desc = acpi_ns_get_attached_object((struct acpi_namespace_node *)operand[0]);
+ acpi_ut_add_reference(return_desc);
+ break;
+ }
} else {
/*
* This must be a reference object produced by either the