network: dhcp6pd: first check prefixes, then calculate lifetime

diff --git a/src/network/networkd-dhcp-prefix-delegation.c b/src/network/networkd-dhcp-prefix-delegation.c
index d2d676c6f503981b300bf0e03c2e966d2465dabe..180a758c43ffe3b35459ece04cabc2f9abcc37fc 100644 (file)
--- a/src/network/networkd-dhcp-prefix-delegation.c
+++ b/src/network/networkd-dhcp-prefix-delegation.c
@@ -800,9 +800,6 @@ static int dhcp6_pd_assign_prefixes(Link *link, Link *uplink) {
                 if (r < 0)
                         break;
 
-                lifetime_preferred_usec = usec_add(lifetime_preferred_sec * USEC_PER_SEC, timestamp_usec);
-                lifetime_valid_usec = usec_add(lifetime_valid_sec * USEC_PER_SEC, timestamp_usec);
-
                 if (pd_prefix_len > 64)
                         continue;
 
@@ -811,6 +808,9 @@ static int dhcp6_pd_assign_prefixes(Link *link, Link *uplink) {
                 if (r < 0)
                         return r;
 
+                lifetime_preferred_usec = usec_add(lifetime_preferred_sec * USEC_PER_SEC, timestamp_usec);
+                lifetime_valid_usec = usec_add(lifetime_valid_sec * USEC_PER_SEC, timestamp_usec);
+
                 r = dhcp6_pd_assign_prefix(link, &pd_prefix, pd_prefix_len, lifetime_preferred_usec, lifetime_valid_usec);
                 if (r < 0)
                         return r;