diff --git a/src/kernel/mgerror.rs b/src/kernel/mgerror.rs
index 54e0e58..dfe83c8 100644
--- a/src/kernel/mgerror.rs
+++ b/src/kernel/mgerror.rs
@@ -1,4 +1,4 @@
-
+#![allow(unused, clippy::missing_docs_in_private_items)]
 /// Error enum, use it with Result<YourSucessStruct, **ErrorCode**>
 pub enum ErrorCode {
     IncError,
@@ -27,5 +27,5 @@ pub enum ErrorCode {
     WrongFileEndianess,
     NoAcia,
 
-    NUMMSGERROR /* Must always be last */
+    NumMsgError /* Must always be last */
 }
\ No newline at end of file
diff --git a/src/kernel/synch.rs b/src/kernel/synch.rs
index 83345f6..ebd18cb 100644
--- a/src/kernel/synch.rs
+++ b/src/kernel/synch.rs
@@ -4,8 +4,6 @@ use crate::simulator::interrupt::InterruptStatus::InterruptOff;
 use crate::simulator::machine::Machine;
 use std::cell::RefCell;
 use std::rc::Rc;
-
-use super::system::System;
 use super::thread_manager::ThreadManager;
 
 ///     Structure of a Semaphore used for synchronisation
@@ -169,6 +167,8 @@ impl Lock {
         machine.interrupt.set_status(old_status);
     }
 
+    ///    True if the current thread holds this lock.
+    /// Useful for checking in Release, and in Condition operations below.
     pub fn held_by_current_thread(&mut self, thread_manager: &mut ThreadManager) -> bool {
         match &self.owner {
             Some(x) =>