arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); if ( arena == NULL ) { goto loser; }
DeleteDBCertEntry(NSSLOWCERTCertDBHandle *handle, SECItem *certKey){    SECItem dbkey;    PRArenaPool *arena = NULL;    SECStatus rv;        arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);    if ( arena == NULL ) {	goto loser;    }    rv = EncodeDBCertKey(certKey, arena, &dbkey);    if ( rv != SECSuccess ) {	goto loser;    }        rv = DeleteDBEntry(handle, certDBEntryTypeCert, &dbkey);    if ( rv == SECFailure ) {	goto loser;    }    PORT_FreeArena(arena, PR_FALSE);    return(SECSuccess);loser:    if ( arena ) {	PORT_FreeArena(arena, PR_FALSE);    }        return(SECFailure);}