Re: [PATCH v2 05/27] selftests/landlock: Fix the openat() success check in fs_bench

fs_bench expects openat() to be denied when Landlock is enabled, but
only treats a returned FD of 0 as success.  Any other valid FD falls
through to the errno check, which then reports a stale errno value.

Check for any non-negative FD instead.

Signed-off-by: Günther Noack <redacted>

Sashiko has reviewed this patch and found no issues.

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