7798 vfs_mountfs passes junk in flags to domount
Reviewed by: Alexander Pyhalov <alp@rsu.ru>
Reviewed by: Toomas Soome <tsoome@me.com>
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>
Reviewed by: Juraj Lutter <juraj.lutter@erigones.com>
Reviewed by: Marcel Telka <marcel@telka.sk>

*** 23,32 ****
--- 23,33 ----
   * Copyright (c) 1988, 2010, Oracle and/or its affiliates. All rights reserved.
   * Copyright (c) 2014, Joyent, Inc. All rights reserved.
   * Copyright 2016 Toomas Soome <tsoome@me.com>
   * Copyright (c) 2016 by Delphix. All rights reserved.
   * Copyright 2016 Nexenta Systems, Inc.
+  * Copyright 2017 RackTop Systems.
   */
  
  /*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T     */
  /*        All Rights Reserved   */
  
*** 789,798 ****
--- 790,800 ----
  {
          struct vnode *mvp;
          struct mounta mounta;
          vfs_t *vfsp;
  
+         bzero(&mounta, sizeof (mounta));
          mounta.flags = MS_SYSSPACE | MS_DATA;
          mounta.fstype = module;
          mounta.spec = spec;
          mounta.dir = path;
          if (lookupname(path, UIO_SYSSPACE, FOLLOW, NULLVPP, &mvp)) {