Silence coverity warnings in query.c

Return value of dns_db_getservestalerefresh() and
dns_db_getservestalettl() functions were previously unhandled.

This commit purposefully ignore those return values since there is
no side effect if those results are != ISC_R_SUCCESS, it also supress
Coverity warnings.

diff --git a/lib/ns/query.c b/lib/ns/query.c
index 159122488d98f95159e29738059618f109aa5278..59078f3edadd6be7332206e5729ca884f9c77aeb 100644 (file)
--- a/lib/ns/query.c
+++ b/lib/ns/query.c
@@ -5577,9 +5577,9 @@ query_lookup(query_ctx_t *qctx) {
                dboptions |= DNS_DBFIND_COVERINGNSEC;
        }
 
-       dns_db_getservestalerefresh(qctx->client->view->cachedb,
-                                   &stale_refresh);
-       dns_db_getservestalettl(qctx->client->view->cachedb, &stale_ttl);
+       (void)dns_db_getservestalerefresh(qctx->client->view->cachedb,
+                                         &stale_refresh);
+       (void)dns_db_getservestalettl(qctx->client->view->cachedb, &stale_ttl);
        if (stale_refresh > 0) {
                if (qctx->client->view->staleanswersok == dns_stale_answer_yes)
                {