Re: [PATCH v2 25/27] selftests/landlock: Assert WIFEXITED() before checking the exit status

WEXITSTATUS() is only meaningful if WIFEXITED() was true (see
wait(2)).  Check WIFEXITED() with ASSERT, as most tests already do, so
that a signaled child does not also produce a misleading exit status
failure.

Signed-off-by: Günther Noack <redacted>

Sashiko has reviewed this patch and found no issues.

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Sashiko AI review · https://sashiko.dev/#/patchset/20261104-selftests-refactor-v2-0-c52f23f7ce33@gmail.com?part=25