diff options
| author | Martin KaFai Lau <kafai@fb.com> | 2020-02-11 20:59:10 +0300 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2020-02-12 19:44:37 +0300 |
| commit | 2fe77100553f3ac6b2105db8ae14b5ea4b43c108 (patch) | |
| tree | 7ea21429a96895c05e3f8ecdd8c018a2641feacf /tools | |
| parent | 30744a68626db6a0029aca9c646831c869c16d83 (diff) | |
| download | linux-2fe77100553f3ac6b2105db8ae14b5ea4b43c108.tar.xz | |
selftests/bpf: Fix error checking on reading the tcp_fastopen sysctl
There is a typo in checking the "saved_tcp_fo" and instead
"saved_tcp_syncookie" is checked again. This patch fixes it
and also breaks them into separate if statements such that
the test will abort asap.
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200211175910.3235321-1-kafai@fb.com
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/select_reuseport.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/select_reuseport.c b/tools/testing/selftests/bpf/prog_tests/select_reuseport.c index 098bcae5f827..b577666d028e 100644 --- a/tools/testing/selftests/bpf/prog_tests/select_reuseport.c +++ b/tools/testing/selftests/bpf/prog_tests/select_reuseport.c @@ -822,8 +822,10 @@ void test_select_reuseport(void) goto out; saved_tcp_fo = read_int_sysctl(TCP_FO_SYSCTL); + if (saved_tcp_fo < 0) + goto out; saved_tcp_syncookie = read_int_sysctl(TCP_SYNCOOKIE_SYSCTL); - if (saved_tcp_syncookie < 0 || saved_tcp_syncookie < 0) + if (saved_tcp_syncookie < 0) goto out; if (enable_fastopen()) |