udev: add usec_add() at one more place

diff --git a/src/udev/udevd.c b/src/udev/udevd.c
index 800ca294bd0a46ec2447b6b5f91cb60caeda50a3..8f0e669d2a011382f8984bbaa75f310b900bdeee 100644 (file)
--- a/src/udev/udevd.c
+++ b/src/udev/udevd.c
@@ -890,7 +890,7 @@ static int event_queue_start(Manager *manager) {
         assert_se(sd_event_now(manager->event, CLOCK_MONOTONIC, &usec) >= 0);
         /* check for changed config, every 3 seconds at most */
         if (manager->last_usec == 0 ||
-            usec - manager->last_usec > 3 * USEC_PER_SEC) {
+            usec > usec_add(manager->last_usec, 3 * USEC_PER_SEC)) {
                 if (udev_rules_check_timestamp(manager->rules) ||
                     udev_builtin_validate())
                         manager_reload(manager);