diff options
| -rw-r--r-- | net/ipv4/tcp_metrics.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c index 199659f7a871..e150f264c8e2 100644 --- a/net/ipv4/tcp_metrics.c +++ b/net/ipv4/tcp_metrics.c @@ -982,7 +982,7 @@ static int tcp_metrics_flush_all(struct net *net) static int tcp_metrics_nl_cmd_del(struct sk_buff *skb, struct genl_info *info) { struct tcpm_hash_bucket *hb; - struct tcp_metrics_block *tm; + struct tcp_metrics_block *tm, *tmlist = NULL; struct tcp_metrics_block __rcu **pp; struct inetpeer_addr daddr; unsigned int hash; @@ -999,17 +999,22 @@ static int tcp_metrics_nl_cmd_del(struct sk_buff *skb, struct genl_info *info) hb = net->ipv4.tcp_metrics_hash + hash; pp = &hb->chain; spin_lock_bh(&tcp_metrics_lock); - for (tm = deref_locked_genl(*pp); tm; - pp = &tm->tcpm_next, tm = deref_locked_genl(*pp)) { + for (tm = deref_locked_genl(*pp); tm; tm = deref_locked_genl(*pp)) { if (addr_same(&tm->tcpm_daddr, &daddr)) { *pp = tm->tcpm_next; - break; + tm->tcpm_next = tmlist; + tmlist = tm; + } else { + pp = &tm->tcpm_next; } } spin_unlock_bh(&tcp_metrics_lock); - if (!tm) + if (!tmlist) return -ESRCH; - kfree_rcu(tm, rcu_head); + for (tm = tmlist; tm; tm = tmlist) { + tmlist = tm->tcpm_next; + kfree_rcu(tm, rcu_head); + } return 0; } |