mptcp: avoid setting TCP_CLOSE state twice

commit 3ba14528684f528566fb7d956bfbfb958b591d86 upstream.

tcp_set_state() is called from tcp_done() already.

There is then no need to first set the state to TCP_CLOSE, then call
tcp_done().

Fixes: d582484726c4 ("mptcp: fix fallback for MP_JOIN subflows")
Cc: stable@vger.kernel.org
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/362
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
index 1645336932799de2879302a1efc0373fc4184f23..1e10a38ccf9d05336f5e53a8fe8cfffa9ba27c18 100644 (file)
--- a/net/mptcp/subflow.c
+++ b/net/mptcp/subflow.c
@@ -358,7 +358,6 @@ void mptcp_subflow_reset(struct sock *ssk)
        /* must hold: tcp_done() could drop last reference on parent */
        sock_hold(sk);
 
-       tcp_set_state(ssk, TCP_CLOSE);
        tcp_send_active_reset(ssk, GFP_ATOMIC);
        tcp_done(ssk);
        if (!test_and_set_bit(MPTCP_WORK_CLOSE_SUBFLOW, &mptcp_sk(sk)->flags) &&