[lwip-devel] [task #7490] Add return value to sys_mbox_post

[Jared Grubb]

Follow-up Comment #7, task #7490 (project lwip):

The "poster" of the data is the only one who can know what SHOULD happen if
the mbox post fails -- and the correct behavior will depend on which mbox it
is. Therefore, I don't think the problem can be solved inside the sys_arch
file.

Simon's idea of returning an error code is probably the safest option.

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