target_emulate_request_sense question

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Hello Nick!

In target_emulate_request_sense, we set err to -EINVAL only to ignore
the value and return 0 from the function.  The mindless mechanical
part of my brain would like to just remove the err variable, but
somehwo I cannot convince myself that we really should be ignoring it.

Do you remember the background of that code and what it intended to
do?

Jörn

--
The rabbit runs faster than the fox, because the rabbit is running for
his life while the fox is only running for his dinner.
-- Aesop
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