patch tsoome-feedback
6659 nvlist_free(NULL) is a no-op

*** 1010,1020 ****
  pmr_done:
          if (meth_name)
                  xmlFree(meth_name);
          if (prop_name)
                  xmlFree(prop_name);
-         if (arg_nvl)
                  nvlist_free(arg_nvl);
          return (ret);
  }
  
  
--- 1010,1019 ----
*** 1100,1110 ****
          if (pcnt > 0) {
                  e |= (ai != pcnt);
                  e |= nvlist_add_nvlist_array(pgnvl, INV_PGRP_ALLPROPS, apl,
                      pcnt);
                  for (ai = 0; ai < pcnt; ai++)
-                         if (apl[ai] != NULL)
                                  nvlist_free(apl[ai]);
                  topo_mod_free(mp, apl, pcnt * sizeof (nvlist_t *));
                  if (e != 0) {
                          nvlist_free(pgnvl);
                          return (-1);
--- 1099,1108 ----