The fcntl() call has variable arguments, therefore we need to pass 0 to specify there are no other arguments for this call, otherwise we might end up with an argument that is random garbage. Bug: webrtc:15174 Change-Id: I34f16a942d80913b667d8ade7eed557b0233be01 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/305120 Reviewed-by: Alexander Cooper <alcooper@chromium.org> Commit-Queue: Jan Grulich <grulja@gmail.com> Cr-Commit-Position: refs/heads/main@{#40060}