ACPICA: Fix possible fault in return package object repair code

Fixes a problem that can occur when a lone package object is
wrapped with an outer package object in order to conform to
the ACPI specification. Can affect these predefined names:
_ALR,_MLS,_PSS,_TRT,_TSS,_PRT,_HPX,_DLM,_CSD,_PSD,_TSD

https://bugzilla.kernel.org/show_bug.cgi?id=44171

This problem was introduced in 3.4-rc1 by commit
6a99b1c94d
(ACPICA: Object repair code: Support to add Package wrappers)

Reported-by: Vlastimil Babka <[email protected]>
Signed-off-by: Bob Moore <[email protected]>
Signed-off-by: Lin Ming <[email protected]>
Cc: <[email protected]> # 3.4
Signed-off-by: Len Brown <[email protected]>
This commit is contained in:
Bob Moore 2012-07-04 10:02:32 +08:00 • committed by Len Brown
commit 46befd6b38

View file

@ -638,7 +638,7 @@ acpi_ns_check_package(struct acpi_predefined_data *data,
/* Create the new outer package and populate it */
status =
acpi_ns_wrap_with_package(data, *elements,
acpi_ns_wrap_with_package(data, return_object,
return_object_ptr);
if (ACPI_FAILURE(status)) {
return (status);