Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/security/apparmor/label.c b/security/apparmor/label.c
index ba11bdf..59f1cc2 100644
--- a/security/apparmor/label.c
+++ b/security/apparmor/label.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AppArmor security module
  *
  * This file contains AppArmor label definitions
  *
  * Copyright 2017 Canonical Ltd.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, version 2 of the
- * License.
  */
 
 #include <linux/audit.h>
@@ -80,7 +76,7 @@
 
 	AA_BUG(!orig);
 	AA_BUG(!new);
-	lockdep_assert_held_exclusive(&labels_set(orig)->lock);
+	lockdep_assert_held_write(&labels_set(orig)->lock);
 
 	tmp = rcu_dereference_protected(orig->proxy->label,
 					&labels_ns(orig)->lock);
@@ -570,7 +566,7 @@
 
 	AA_BUG(!ls);
 	AA_BUG(!label);
-	lockdep_assert_held_exclusive(&ls->lock);
+	lockdep_assert_held_write(&ls->lock);
 
 	if (new)
 		__aa_proxy_redirect(label, new);
@@ -607,7 +603,7 @@
 	AA_BUG(!ls);
 	AA_BUG(!old);
 	AA_BUG(!new);
-	lockdep_assert_held_exclusive(&ls->lock);
+	lockdep_assert_held_write(&ls->lock);
 	AA_BUG(new->flags & FLAG_IN_TREE);
 
 	if (!label_is_stale(old))
@@ -644,7 +640,7 @@
 	AA_BUG(!ls);
 	AA_BUG(!label);
 	AA_BUG(labels_set(label) != ls);
-	lockdep_assert_held_exclusive(&ls->lock);
+	lockdep_assert_held_write(&ls->lock);
 	AA_BUG(label->flags & FLAG_IN_TREE);
 
 	/* Figure out where to put new node */