Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/security/integrity/iint.c b/security/integrity/iint.c
index 5a68100..e12c490 100644
--- a/security/integrity/iint.c
+++ b/security/integrity/iint.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2008 IBM Corporation
  *
  * Authors:
  * Mimi Zohar <zohar@us.ibm.com>
  *
- * 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.
- *
  * File: integrity_iint.c
  *	- implements the integrity hooks: integrity_inode_alloc,
  *	  integrity_inode_free
@@ -16,12 +12,13 @@
  *	  using a rbtree tree.
  */
 #include <linux/slab.h>
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/spinlock.h>
 #include <linux/rbtree.h>
 #include <linux/file.h>
 #include <linux/uaccess.h>
 #include <linux/security.h>
+#include <linux/lsm_hooks.h>
 #include "integrity.h"
 
 static struct rb_root integrity_iint_tree = RB_ROOT;
@@ -174,7 +171,10 @@
 			      0, SLAB_PANIC, init_once);
 	return 0;
 }
-security_initcall(integrity_iintcache_init);
+DEFINE_LSM(integrity) = {
+	.name = "integrity",
+	.init = integrity_iintcache_init,
+};
 
 
 /*
@@ -196,7 +196,7 @@
 		return -EBADF;
 
 	old_fs = get_fs();
-	set_fs(get_ds());
+	set_fs(KERNEL_DS);
 	ret = __vfs_read(file, buf, count, &offset);
 	set_fs(old_fs);