From: Vlad Tsyrklevich <>
Date: Fri, 14 Oct 2016 11:59:18 +0200

> enic_get_ethtool_stats()

Looknig merely at this shows the real problem.

We don't propagate and handle errors for this method.

And that's what we should fix, making the get_ethtool_stats() method
return an integer error.

Then ethtool_get_stats() should return any non-zero value provided by
ops->get_ethtool_stats() and not attempt to copy any bytes of 'data'
to userspace in that case.

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