diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c
index e5eff75..aa34d89 100644
--- a/drivers/acpi/acpica/dsopcode.c
+++ b/drivers/acpi/acpica/dsopcode.c
@@ -286,7 +286,7 @@
  * FUNCTION:    acpi_ds_eval_buffer_field_operands
  *
  * PARAMETERS:  walk_state      - Current walk
- *              Op              - A valid buffer_field Op object
+ *              op              - A valid buffer_field Op object
  *
  * RETURN:      Status
  *
@@ -370,7 +370,7 @@
  * FUNCTION:    acpi_ds_eval_region_operands
  *
  * PARAMETERS:  walk_state      - Current walk
- *              Op              - A valid region Op object
+ *              op              - A valid region Op object
  *
  * RETURN:      Status
  *
@@ -397,7 +397,7 @@
 	 */
 	node = op->common.node;
 
-	/* next_op points to the op that holds the space_iD */
+	/* next_op points to the op that holds the space_ID */
 
 	next_op = op->common.value.arg;
 
@@ -461,7 +461,7 @@
  * FUNCTION:    acpi_ds_eval_table_region_operands
  *
  * PARAMETERS:  walk_state      - Current walk
- *              Op              - A valid region Op object
+ *              op              - A valid region Op object
  *
  * RETURN:      Status
  *
@@ -560,7 +560,7 @@
  * FUNCTION:    acpi_ds_eval_data_object_operands
  *
  * PARAMETERS:  walk_state      - Current walk
- *              Op              - A valid data_object Op object
+ *              op              - A valid data_object Op object
  *              obj_desc        - data_object
  *
  * RETURN:      Status
@@ -662,7 +662,7 @@
  * FUNCTION:    acpi_ds_eval_bank_field_operands
  *
  * PARAMETERS:  walk_state      - Current walk
- *              Op              - A valid bank_field Op object
+ *              op              - A valid bank_field Op object
  *
  * RETURN:      Status
  *