1 files changed, 37 insertions, 24 deletions

diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c
index 6c2685a6a4c1..d7d74ef87b18 100644
--- a/drivers/acpi/acpica/exconfig.c
+++ b/drivers/acpi/acpica/exconfig.c
@@ -3,7 +3,7 @@
  *
  * Module Name: exconfig - Namespace reconfiguration (Load/Unload opcodes)
  *
- * Copyright (C) 2000 - 2021, Intel Corp.
+ * Copyright (C) 2000 - 2022, Intel Corp.
  *
  *****************************************************************************/
 
@@ -87,11 +87,21 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
 	struct acpi_namespace_node *parent_node;
 	struct acpi_namespace_node *start_node;
 	struct acpi_namespace_node *parameter_node = NULL;
+	union acpi_operand_object *return_obj;
 	union acpi_operand_object *ddb_handle;
 	u32 table_index;
 
 	ACPI_FUNCTION_TRACE(ex_load_table_op);
 
+	/* Create the return object */
+
+	return_obj = acpi_ut_create_integer_object((u64)0);
+	if (!return_obj) {
+		return_ACPI_STATUS(AE_NO_MEMORY);
+	}
+
+	*return_desc = return_obj;
+
 	/* Find the ACPI table in the RSDT/XSDT */
 
 	acpi_ex_exit_interpreter();
@@ -106,12 +116,6 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
 
 		/* Table not found, return an Integer=0 and AE_OK */
 
-		ddb_handle = acpi_ut_create_integer_object((u64) 0);
-		if (!ddb_handle) {
-			return_ACPI_STATUS(AE_NO_MEMORY);
-		}
-
-		*return_desc = ddb_handle;
 		return_ACPI_STATUS(AE_OK);
 	}
 
@@ -198,7 +202,13 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
 		}
 	}
 
-	*return_desc = ddb_handle;
+	/* Remove the reference to ddb_handle created by acpi_ex_add_table above */
+
+	acpi_ut_remove_reference(ddb_handle);
+
+	/* Return -1 (non-zero) indicates success */
+
+	return_obj->integer.value = 0xFFFFFFFFFFFFFFFF;
 	return_ACPI_STATUS(status);
 }
 
@@ -249,7 +259,7 @@ acpi_ex_region_read(union acpi_operand_object *obj_desc, u32 length, u8 *buffer)
  *
  * PARAMETERS:  obj_desc        - Region or Buffer/Field where the table will be
  *                                obtained
- *              target          - Where a handle to the table will be stored
+ *              target          - Where the status of the load will be stored
  *              walk_state      - Current state
  *
  * RETURN:      Status
@@ -278,6 +288,20 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 
 	ACPI_FUNCTION_TRACE(ex_load_op);
 
+	if (target->common.descriptor_type == ACPI_DESC_TYPE_NAMED) {
+		target =
+		    acpi_ns_get_attached_object(ACPI_CAST_PTR
+						(struct acpi_namespace_node,
+						 target));
+	}
+	if (target->common.type != ACPI_TYPE_INTEGER) {
+		ACPI_EXCEPTION((AE_INFO, AE_TYPE,
+				"Type not integer: %X\n", target->common.type));
+		return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+	}
+
+	target->integer.value = 0;
+
 	/* Source Object can be either an op_region or a Buffer/Field */
 
 	switch (obj_desc->common.type) {
@@ -430,9 +454,6 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 	 */
 	status = acpi_ex_add_table(table_index, &ddb_handle);
 	if (ACPI_FAILURE(status)) {
-
-		/* On error, table_ptr was deallocated above */
-
 		return_ACPI_STATUS(status);
 	}
 
@@ -442,21 +463,13 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 	acpi_ns_initialize_objects();
 	acpi_ex_enter_interpreter();
 
-	/* Store the ddb_handle into the Target operand */
+	/* Remove the reference to ddb_handle created by acpi_ex_add_table above */
 
-	status = acpi_ex_store(ddb_handle, target, walk_state);
-	if (ACPI_FAILURE(status)) {
-		(void)acpi_ex_unload_table(ddb_handle);
-
-		/* table_ptr was deallocated above */
-
-		acpi_ut_remove_reference(ddb_handle);
-		return_ACPI_STATUS(status);
-	}
+	acpi_ut_remove_reference(ddb_handle);
 
-	/* Remove the reference by added by acpi_ex_store above */
+	/* Return -1 (non-zero) indicates success */
 
-	acpi_ut_remove_reference(ddb_handle);
+	target->integer.value = 0xFFFFFFFFFFFFFFFF;
 	return_ACPI_STATUS(status);
 }