10703 smatch unreachable code checking needs reworking
Reviewed by: Toomas Soome <tsoome@me.com>
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>

*** 20,30 ****
   */
  /*
   * Copyright (c) 1994, 2010, Oracle and/or its affiliates. All rights reserved.
   */
  /*
!  * Copyright (c) 2013, Joyent, Inc.  All rights reserved.
   */
  
  /*
   * Layered driver support.
   */
--- 20,30 ----
   */
  /*
   * Copyright (c) 1994, 2010, Oracle and/or its affiliates. All rights reserved.
   */
  /*
!  * Copyright 2019 Joyent, Inc.
   */
  
  /*
   * Layered driver support.
   */
*** 3491,3501 ****
              evname, (void *)dip));
  
          if (!ldi_ev_sync_event(evname)) {
                  cmn_err(CE_PANIC, "ldi_ev_notify(): %s not a "
                      "negotiatable event", evname);
-                 return (LDI_EV_SUCCESS);
          }
  
          major = ddi_driver_major(dip);
          if (major == DDI_MAJOR_T_NONE) {
                  char *path = kmem_alloc(MAXPATHLEN, KM_SLEEP);
--- 3491,3500 ----