Re: [char-misc-next 3/3] mei: report consistently copy_from/to_user failures

From: One Thousand Gnomes
Date: Tue Mar 11 2014 - 17:30:11 EST


On Tue, 11 Mar 2014 14:49:25 +0200
Tomas Winkler <tomas.winkler@xxxxxxxxx> wrote:

> From: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>
>
> Consistently display error on possible copy_from/to_user failures
> and replace dev_dbg with dev_err

NAK

This allows users to flood the logs by deliberately causing lots of these
failed to copy data error messages, and if they can flood the logs they
can hide other stuff.

The -EFAULT cases should be consistent - but consistently *not* logged.

Alan
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