[PATCH net 1/3] tcp: fix off-by-one bug on aborting window-probing socket

[Yuchung Cheng]

Previously there is an off-by-one bug on determining when to abort
a stalled window-probing socket. This patch fixes that so it is
consistent with tcp_write_timeout().

Signed-off-by: Yuchung Cheng <ych...@google.com>
Signed-off-by: Eric Dumazet <eduma...@google.com>
Signed-off-by: Neal Cardwell <ncardw...@google.com>
---
 net/ipv4/tcp_timer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 5f8b6d3cd855..94d858c604f6 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -376,7 +376,7 @@ static void tcp_probe_timer(struct sock *sk)
                        return;
        }
 
-       if (icsk->icsk_probes_out > max_probes) {
+       if (icsk->icsk_probes_out >= max_probes) {
 abort:         tcp_write_err(sk);
        } else {
                /* Only send another probe if we didn't close things up. */
-- 
2.20.0.rc0.387.gc7a69e6b6c-goog