resolved: use usec_add() at one more place

Follow-up for 8458b7fb91ea5e5109b6f3c94f8a781a120c798b.
Fixes CID#1612580.

diff --git a/src/resolve/resolved-dns-browse-services.c b/src/resolve/resolved-dns-browse-services.c
index 0401dfb754be646ac1f1afcf01751658f7df8d5b..b2ecc4c3d49cbdabbc9957ec8016ee553f39d170 100644 (file)
--- a/src/resolve/resolved-dns-browse-services.c
+++ b/src/resolve/resolved-dns-browse-services.c
@@ -198,7 +198,7 @@ int dns_add_new_service(DnsServiceBrowser *sb, DnsResourceRecord *rr, int owner_
                 /* If next_time is still in the past, the service is being added
                  * after it has already expired. Just schedule a 100%
                  * maintenance query. */
-                next_time = usec + USEC_PER_SEC;
+                next_time = usec_add(usec, USEC_PER_SEC);
                 s->rr_ttl_state = DNS_RECORD_TTL_STATE_100_PERCENT;
         }