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authorLin Ming <ming.m.lin@intel.com>2009-12-11 14:36:47 +0800
committerLen Brown <len.brown@intel.com>2009-12-15 17:29:34 -0500
commit583061c59ffea1ea14f6dca735ab0f99238a7a92 (patch)
tree4be6118d33ae59f543e2973a1aefdbfac19389b6 /drivers/acpi/acpica/nseval.c
parentb00eb796f1b67c46036b5490e83b31741f1eebaf (diff)
ACPICA: Fix possible memory leak for module-level code execution
An object can be leaked for each block of executed module-level code if the interpreter slack mode is enabled. The change deletes any implicitly returned object in this case. Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/nseval.c')
-rw-r--r--drivers/acpi/acpica/nseval.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/nseval.c b/drivers/acpi/acpica/nseval.c
index f771e978c403..65e0d1a260ea 100644
--- a/drivers/acpi/acpica/nseval.c
+++ b/drivers/acpi/acpica/nseval.c
@@ -415,6 +415,12 @@ acpi_ns_exec_module_code(union acpi_operand_object *method_obj,
ACPI_DEBUG_PRINT((ACPI_DB_INIT, "Executed module-level code at %p\n",
method_obj->method.aml_start));
+ /* Delete a possible implicit return value (in slack mode) */
+
+ if (info->return_object) {
+ acpi_ut_remove_reference(info->return_object);
+ }
+
/* Detach the temporary method object */
acpi_ns_detach_object(parent_node);