if (entry) { return nssCertificate_AddRef(entry->cert); } return NULL;
return rvCert;
nssCertificateStore_FindCertificateByIssuerAndSerialNumber(  nssCertificateStore *store,  NSSDER *issuer,  NSSDER *serial){    certificate_hash_entry *entry;    NSSCertificate index;    index.issuer = *issuer;    index.serial = *serial;    PZ_Lock(store->lock);    entry = (certificate_hash_entry *)                           nssHash_Lookup(store->issuer_and_serial, &index);    PZ_Unlock(store->lock);    if (entry) {	return nssCertificate_AddRef(entry->cert);    }    return NULL;}