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6659 nvlist_free(NULL) is a no-op
*** 69,79 ****
                      SVE_STE_CLASS, component, attr_list, NULL, DDI_SLEEP);
          else if (strcmp(driver_name, "ii") == 0)
                  rc = ddi_log_sysevent(info_dip, DDI_VENDOR_SUNW,
                      SVE_II_CLASS, component, attr_list, NULL, DDI_SLEEP);
  out:
-         if (attr_list)
                  nvlist_free(attr_list);
  
          if (rc != 0) {
                  cmn_err(CE_WARN, "!%s: unable to log sysevent %d:%s and %d",
                      driver_name, errorno, trap_messages, alertlevel);
--- 69,78 ----