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Diffstat (limited to 'drivers/acpi/acpica/exstore.c')
-rw-r--r--drivers/acpi/acpica/exstore.c31
1 files changed, 25 insertions, 6 deletions
diff --git a/drivers/acpi/acpica/exstore.c b/drivers/acpi/acpica/exstore.c
index 90431f12f83..93c6049c2d7 100644
--- a/drivers/acpi/acpica/exstore.c
+++ b/drivers/acpi/acpica/exstore.c
@@ -5,7 +5,7 @@
*****************************************************************************/
/*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -487,14 +487,33 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc,
default:
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Storing %s (%p) directly into node (%p) with no implicit conversion\n",
+ "Storing [%s] (%p) directly into node [%s] (%p)"
+ " with no implicit conversion\n",
acpi_ut_get_object_type_name(source_desc),
- source_desc, node));
+ source_desc,
+ acpi_ut_get_object_type_name(target_desc),
+ node));
- /* No conversions for all other types. Just attach the source object */
+ /*
+ * No conversions for all other types. Directly store a copy of
+ * the source object. NOTE: This is a departure from the ACPI
+ * spec, which states "If conversion is impossible, abort the
+ * running control method".
+ *
+ * This code implements "If conversion is impossible, treat the
+ * Store operation as a CopyObject".
+ */
+ status =
+ acpi_ut_copy_iobject_to_iobject(source_desc, &new_desc,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
- status = acpi_ns_attach_object(node, source_desc,
- source_desc->common.type);
+ status =
+ acpi_ns_attach_object(node, new_desc,
+ new_desc->common.type);
+ acpi_ut_remove_reference(new_desc);
break;
}