ACPICA: Add support to externally execute _OSI method

The current implemenation of _OSI within ACPICA only allows other
control methods to execute _OSI. This change allows the host
OS to execute _OSI via the AcpiEvaluateObject interface. _OSI
is a special method -- it does not exist in the AML code, it is
implemented within ACPICA.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/acpi/dispatcher/dsmethod.c b/drivers/acpi/dispatcher/dsmethod.c
index 279a5a60a0dd..77b7039a26e4 100644
--- a/drivers/acpi/dispatcher/dsmethod.c
+++ b/drivers/acpi/dispatcher/dsmethod.c
@@ -412,6 +412,9 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
 
         if (obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) {
                 status = obj_desc->method.implementation(next_walk_state);
+                if (status == AE_OK) {
+                        status = AE_CTRL_TERMINATE;
+                }
         }
 
         return_ACPI_STATUS(status);