ACPICA: New: AcpiInstallMethod - install a single control method

This interface enables the override or creation of a single
control method. Useful to repair a bug or install a missing method.

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>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/acpi/acpica/nsobject.c b/drivers/acpi/acpica/nsobject.c
index 3eb20bfda9d8..60f3af08d28c 100644
--- a/drivers/acpi/acpica/nsobject.c
+++ b/drivers/acpi/acpica/nsobject.c
@@ -213,6 +213,15 @@ void acpi_ns_detach_object(struct acpi_namespace_node *node)
                 return_VOID;
         }
 
+        if (node->flags & ANOBJ_ALLOCATED_BUFFER) {
+
+                /* Free the dynamic aml buffer */
+
+                if (obj_desc->common.type == ACPI_TYPE_METHOD) {
+                        ACPI_FREE(obj_desc->method.aml_start);
+                }
+        }
+
         /* Clear the entry in all cases */
 
         node->object = NULL;