mptcp: fix locking in mptcp_disconnect()

[linux-2.6-microblaze.git] / net / mptcp / protocol.c

diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index 81faeff..f998a07 100644 (file)
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -2646,8 +2646,13 @@ static int mptcp_disconnect(struct sock *sk, int flags)
        struct mptcp_sock *msk = mptcp_sk(sk);
 
        __mptcp_flush_join_list(msk);
-       mptcp_for_each_subflow(msk, subflow)
-               tcp_disconnect(mptcp_subflow_tcp_sock(subflow), flags);
+       mptcp_for_each_subflow(msk, subflow) {
+               struct sock *ssk = mptcp_subflow_tcp_sock(subflow);
+
+               lock_sock(ssk);
+               tcp_disconnect(ssk, flags);
+               release_sock(ssk);
+       }
        return 0;
 }