selftests/bpf: Fix return value checks in perf_event_stackmap test

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The bpf_get_stackid() function may also return 0 on success as per UAPI BPF
helper documentation. Therefore, correct checks from 'val > 0' to 'val >= 0'
to ensure that they cover all possible success return values.

Signed-off-by: Yuntao Wang <ytcoode@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220408041452.933944-1-ytcoode@gmail.com

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Yuntao Wang 2022-04-08 12:14:52 +08:00 • committed by Daniel Borkmann

parent 8555defe48

commit 658d87687c

1 changed files with 2 additions and 2 deletions

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tools/testing/selftests/bpf/progs/perf_event_stackmap.c

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