ACPICA: Fix a couple memory leaks during package object resolution

ACPICA commit 69d4415360446b4a1826dab76ba0cd6d24710ddd

A couple memory leaks during resolution of individual
package elements.

Link: https://github.com/acpica/acpica/commit/69d44153
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/acpica/dspkginit.c b/drivers/acpi/acpica/dspkginit.c
index 6d487ed..5a602b7 100644 (file)
--- a/drivers/acpi/acpica/dspkginit.c
+++ b/drivers/acpi/acpica/dspkginit.c
@@ -297,8 +297,10 @@ acpi_ds_init_package_element(u8 object_type,
 {
        union acpi_operand_object **element_ptr;
 
+       ACPI_FUNCTION_TRACE(ds_init_package_element);
+
        if (!source_object) {
-               return (AE_OK);
+               return_ACPI_STATUS(AE_OK);
        }
 
        /*
@@ -329,7 +331,7 @@ acpi_ds_init_package_element(u8 object_type,
                source_object->package.flags |= AOPOBJ_DATA_VALID;
        }
 
-       return (AE_OK);
+       return_ACPI_STATUS(AE_OK);
 }
 
 /*******************************************************************************
@@ -352,6 +354,7 @@ acpi_ds_resolve_package_element(union acpi_operand_object **element_ptr)
        union acpi_generic_state scope_info;
        union acpi_operand_object *element = *element_ptr;
        struct acpi_namespace_node *resolved_node;
+       struct acpi_namespace_node *original_node;
        char *external_path = NULL;
        acpi_object_type type;
 
@@ -441,6 +444,7 @@ acpi_ds_resolve_package_element(union acpi_operand_object **element_ptr)
         * will remain as named references. This behavior is not described
         * in the ACPI spec, but it appears to be an oversight.
         */
+       original_node = resolved_node;
        status = acpi_ex_resolve_node_to_value(&resolved_node, NULL);
        if (ACPI_FAILURE(status)) {
                return_VOID;
@@ -468,26 +472,27 @@ acpi_ds_resolve_package_element(union acpi_operand_object **element_ptr)
                 */
        case ACPI_TYPE_DEVICE:
        case ACPI_TYPE_THERMAL:
-
-               /* TBD: This may not be necesssary */
-
-               acpi_ut_add_reference(resolved_node->object);
+       case ACPI_TYPE_METHOD:
                break;
 
        case ACPI_TYPE_MUTEX:
-       case ACPI_TYPE_METHOD:
        case ACPI_TYPE_POWER:
        case ACPI_TYPE_PROCESSOR:
        case ACPI_TYPE_EVENT:
        case ACPI_TYPE_REGION:
 
+               /* acpi_ex_resolve_node_to_value gave these an extra reference */
+
+               acpi_ut_remove_reference(original_node->object);
                break;
 
        default:
                /*
                 * For all other types - the node was resolved to an actual
-                * operand object with a value, return the object
+                * operand object with a value, return the object. Remove
+                * a reference on the existing object.
                 */
+               acpi_ut_remove_reference(element);
                *element_ptr = (union acpi_operand_object *)resolved_node;
                break;
        }