6659 nvlist_free(NULL) is a no-op

*** 522,532 ****
                          fmd_case_solve(hdl, cp);
                          solve = 1;
                  }
          }
  
-         if (rsc)
                  nvlist_free(rsc);
  
          return (solve ? CMD_EVD_OK : CMD_EVD_UNUSED);
  }
  
--- 522,531 ----