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

*** 285,299 ****
          err += nvlist_add_nvlist(dtcr, FM_FMRI_SW_OBJ, obj);
          err += nvlist_add_nvlist(dtcr, FM_FMRI_SW_SITE, site);
          err += nvlist_add_nvlist(dtcr, FM_FMRI_SW_CTXT, ctxt);
  
  done:
-         if (obj != NULL)
                  nvlist_free(obj);
-         if (site != NULL)
                  nvlist_free(site);
-         if (ctxt != NULL)
                  nvlist_free(ctxt);
  
          if (err == 0) {
                  return (dtcr);
          } else {
--- 285,296 ----
*** 554,564 ****
          (void) pthread_mutex_unlock(&fmevt_lock);
  
          if (ruleset)
                  free(ruleset);
  
-         if (rawattr)
                  nvlist_free(rawattr);
  
          return (0);     /* in all cases consider the event delivered */
  }
  
--- 551,560 ----