[NET_SCHED]: sch_htb: fix event cache time calculation

The event cache time must be an absolute value, when no event exists
it is incorrectly set to 1s instead of 1s in the future.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 99bcec8dd04c1ac6fbba3a8d78492fc7cd5137ba..035788c5b7f8a75c07961c0694df50aeaa9ecef1 100644 (file)
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -976,8 +976,9 @@ static struct sk_buff *htb_dequeue(struct Qdisc *sch)
 
                if (q->now >= q->near_ev_cache[level]) {
                        event = htb_do_events(q, level);
-                       q->near_ev_cache[level] = event ? event :
-                                                         PSCHED_TICKS_PER_SEC;
+                       if (!event)
+                               event = q->now + PSCHED_TICKS_PER_SEC;
+                       q->near_ev_cache[level] = event;
                } else
                        event = q->near_ev_cache[level];