CID 464851: Possible Control flow issues (DEADCODE) in lib/dns/opensslrsa_link.c

Coverity Scan claims dead code in lib/dns/opensslrsa_link.c on v9.18.

/lib/dns/opensslrsa_link.c: 1406 in opensslrsa_parse()
1400     		OSSL_PARAM_free(params);
1401     	}
1402     	if (bld != NULL) {
1403     		OSSL_PARAM_BLD_free(bld);
1404     	}
1405     	if (ex != NULL) {
>>>     CID 464851:  Possible Control flow issues  (DEADCODE)
>>>     Execution cannot reach this statement: "BN_free(ex);".
1406     		BN_free(ex);
1407     	}
1408     	if (e != NULL) {
1409     		BN_free(e);
1410     	}
1411     	if (n != NULL) {