Fix theoretical leak discovered by coverity

This was introduced when we started checking the return from
ipadb_get_context() to silence another coverity report.
That condition can never be true in this function but whatever ... let's
silence Coverity once again :)

daemons/ipa-kdb/ipa_kdb_principals.c

@@ -374,6 +374,7 @@ static krb5_error_code ipadb_parse_ldap_entry(krb5_context kcontext,
      * krb5_db_entry in kdb.h */
     ipactx = ipadb_get_context(kcontext);
     if (!ipactx) {
+        free(entry);
         return KRB5_KDB_DBNOTINITED;
     }
     lcontext = ipactx->lcontext;