diff options
Diffstat (limited to 'net/sched/sch_htb.c')
| -rw-r--r-- | net/sched/sch_htb.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c index 83f5e69243c1..3a119f576bb3 100644 --- a/net/sched/sch_htb.c +++ b/net/sched/sch_htb.c @@ -1100,7 +1100,9 @@ static int htb_graft(struct Qdisc *sch, unsigned long arg, struct Qdisc *new, == NULL) return -ENOBUFS; sch_tree_lock(sch); - if ((*old = xchg(&cl->un.leaf.q, new)) != NULL) { + *old = cl->un.leaf.q; + cl->un.leaf.q = new; + if (*old != NULL) { qdisc_tree_decrease_qlen(*old, (*old)->q.qlen); qdisc_reset(*old); } |