BUG/MAJOR: backend: only update server's counters when the server exists

PiBa-NL reported that since this commit f157384 ("MINOR: backend: count
the number of connect and reuse per server and per backend"), reg-test
connection/h00001 fails. Indeed it does, the server is not checked for
existing prior to updating its counter. It should also fail with
transparent mode.

diff --git a/src/backend.c b/src/backend.c
index bb9b4ea665b65aa9a1f368d11767fac15d027f15..e11675756d390114dbdf9c00b8a4721ffeaab985 100644 (file)
--- a/src/backend.c
+++ b/src/backend.c
@@ -1378,10 +1378,12 @@ int connect_server(struct stream *s)
 
        if (s->flags & SF_SRV_REUSED) {
                HA_ATOMIC_ADD(&s->be->be_counters.reuse, 1);
-               HA_ATOMIC_ADD(&srv->counters.reuse, 1);
+               if (srv)
+                       HA_ATOMIC_ADD(&srv->counters.reuse, 1);
        } else {
                HA_ATOMIC_ADD(&s->be->be_counters.connect, 1);
-               HA_ATOMIC_ADD(&srv->counters.connect, 1);
+               if (srv)
+                       HA_ATOMIC_ADD(&srv->counters.connect, 1);
        }
 
        err = si_connect(&s->si[1], srv_conn);