diff options
| -rw-r--r-- | net/mptcp/subflow.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c index f3c06b8af92d..493b98a0825c 100644 --- a/net/mptcp/subflow.c +++ b/net/mptcp/subflow.c @@ -413,6 +413,20 @@ static void subflow_ulp_fallback(struct sock *sk, tcp_sk(sk)->is_mptcp = 0; } +static void subflow_drop_ctx(struct sock *ssk) +{ + struct mptcp_subflow_context *ctx = mptcp_subflow_ctx(ssk); + + if (!ctx) + return; + + subflow_ulp_fallback(ssk, ctx); + if (ctx->conn) + sock_put(ctx->conn); + + kfree_rcu(ctx, rcu); +} + static struct sock *subflow_syn_recv_sock(const struct sock *sk, struct sk_buff *skb, struct request_sock *req, @@ -485,10 +499,7 @@ create_child: if (fallback_is_fatal) goto dispose_child; - if (ctx) { - subflow_ulp_fallback(child, ctx); - kfree_rcu(ctx, rcu); - } + subflow_drop_ctx(child); goto out; } @@ -537,6 +548,7 @@ out: return child; dispose_child: + subflow_drop_ctx(child); tcp_rsk(req)->drop_req = true; tcp_send_active_reset(child, GFP_ATOMIC); inet_csk_prepare_for_destroy_sock(child); |