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selftests/bpf: Don't close(-1) in serial_test_fexit_stress()

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Guard close() with extra link_fd[i] > 0 and fexit_fd[i] > 0
check to prevent close(-1).

Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240623131753.2133829-1-make24@iscas.ac.cn
This commit is contained in:
Ma Ke 2024-06-23 21:17:53 +08:00 committed by Andrii Nakryiko
parent aa293983d2
commit d07980f737
1 changed files with 2 additions and 2 deletions
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4
tools/testing/selftests/bpf/prog_tests/fexit_stress.c
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@ -50,9 +50,9 @@ void serial_test_fexit_stress(void)
out:
for (i = 0; i < bpf_max_tramp_links; i++) {
if (link_fd[i])
if (link_fd[i] > 0)
close(link_fd[i]);
if (fexit_fd[i])
if (fexit_fd[i] > 0)
close(fexit_fd[i]);
}
free(fd);