1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/acpi/executer/excreate.c b/drivers/acpi/executer/excreate.c
index 7c38528a7e83..ae97812681a3 100644
--- a/drivers/acpi/executer/excreate.c
+++ b/drivers/acpi/executer/excreate.c
@@ -583,7 +583,10 @@ acpi_ex_create_method(u8 * aml_start,
          * Get the sync_level. If method is serialized, a mutex will be
          * created for this method when it is parsed.
          */
-        if (method_flags & AML_METHOD_SERIALIZED) {
+        if (acpi_gbl_all_methods_serialized) {
+                obj_desc->method.sync_level = 0;
+                obj_desc->method.method_flags |= AML_METHOD_SERIALIZED;
+        } else if (method_flags & AML_METHOD_SERIALIZED) {
                 /*
                  * ACPI 1.0: sync_level = 0
                  * ACPI 2.0: sync_level = sync_level in method declaration