RFR: 8254144: Non-x86 Zero builds fail with return-type warning in os_linux_zero.cpp

[Zhengyu Gu]

On Wed, 7 Oct 2020 11:11:51 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Pretty trivial: missing `return` statement for non-void returning function. GCC complains about it in 11u, but not in
> HEAD. Still, I believe we should fix it everywhere.
> Testing:
>  - [x] Linux Zero arm32 build, HEAD
>  - [x] Linux Zero arm32 build, 11u

Looks good and trivial

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Marked as reviewed by zgu (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/539