netdev - [PATCH bpf 1/2] selftests/bpf: test_progs: don't leak server_fd in tcp

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Date:   Tue,  1 Oct 2019 10:37:27 -0700
From:   Brian Vazquez <brianvv@...gle.com>
To:     Brian Vazquez <brianvv.kernel@...il.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        "David S . Miller" <davem@...emloft.net>
Cc:     Stanislav Fomichev <sdf@...gle.com>, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, bpf@...r.kernel.org,
        Brian Vazquez <brianvv@...gle.com>
Subject: [PATCH bpf 1/2] selftests/bpf: test_progs: don't leak server_fd in tcp_rtt

server_fd needs to be closed if pthread can't be created.

Fixes: 8a03222f508b ("selftests/bpf: test_progs: fix client/server race
in tcp_rtt")
Cc: Stanislav Fomichev <sdf@...gle.com>

Signed-off-by: Brian Vazquez <brianvv@...gle.com>
---
 tools/testing/selftests/bpf/prog_tests/tcp_rtt.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/tcp_rtt.c b/tools/testing/selftests/bpf/prog_tests/tcp_rtt.c
index a82da555b1b02..f4cd60d6fba2e 100644
--- a/tools/testing/selftests/bpf/prog_tests/tcp_rtt.c
+++ b/tools/testing/selftests/bpf/prog_tests/tcp_rtt.c
@@ -260,13 +260,14 @@ void test_tcp_rtt(void)
 
 	if (CHECK_FAIL(pthread_create(&tid, NULL, server_thread,
 				      (void *)&server_fd)))
-		goto close_cgroup_fd;
+		goto close_server_fd;
 
 	pthread_mutex_lock(&server_started_mtx);
 	pthread_cond_wait(&server_started, &server_started_mtx);
 	pthread_mutex_unlock(&server_started_mtx);
 
 	CHECK_FAIL(run_test(cgroup_fd, server_fd));
+close_server_fd:
 	close(server_fd);
 close_cgroup_fd:
 	close(cgroup_fd);
-- 
2.23.0.444.g18eeb5a265-goog