diff --git a/drivers/acpi/acpica/utmutex.c b/drivers/acpi/acpica/utmutex.c
index 43174df..296baa6 100644
--- a/drivers/acpi/acpica/utmutex.c
+++ b/drivers/acpi/acpica/utmutex.c
@@ -147,7 +147,7 @@
  *
  * FUNCTION:    acpi_ut_create_mutex
  *
- * PARAMETERS:  mutex_iD        - ID of the mutex to be created
+ * PARAMETERS:  mutex_ID        - ID of the mutex to be created
  *
  * RETURN:      Status
  *
@@ -176,7 +176,7 @@
  *
  * FUNCTION:    acpi_ut_delete_mutex
  *
- * PARAMETERS:  mutex_iD        - ID of the mutex to be deleted
+ * PARAMETERS:  mutex_ID        - ID of the mutex to be deleted
  *
  * RETURN:      Status
  *
@@ -199,7 +199,7 @@
  *
  * FUNCTION:    acpi_ut_acquire_mutex
  *
- * PARAMETERS:  mutex_iD        - ID of the mutex to be acquired
+ * PARAMETERS:  mutex_ID        - ID of the mutex to be acquired
  *
  * RETURN:      Status
  *
@@ -283,7 +283,7 @@
  *
  * FUNCTION:    acpi_ut_release_mutex
  *
- * PARAMETERS:  mutex_iD        - ID of the mutex to be released
+ * PARAMETERS:  mutex_ID        - ID of the mutex to be released
  *
  * RETURN:      Status
  *