Re: [patch]hp_accel: Fix race in device removal

From: Andrew Morton
Date: Mon May 10 2010 - 18:48:06 EST


On Fri, 7 May 2010 18:04:20 +0200
Oliver Neukum <oneukum@xxxxxxx> wrote:

> >From 505056649f5ecb1ebb086981243b9870ce961a87 Mon Sep 17 00:00:00 2001
> From: Oliver Neukum <oliver@xxxxxxxxxx>
> Date: Fri, 7 May 2010 18:02:07 +0200
> Subject: [PATCH] hp_accel: Fix race in device removal
>
> The work queue has to be flushed after the device has been made
> inaccessible.
>

You cc'ed stable@xxxxxxxxxx so presumably you think it's a pretty
serious bug.

But alas, I (and presumably others) cannot confirm that, because you
didn't describe the bug :( This also means that if someone hits a
problem with this driver, they won't easily be able to work out whether
this patch will fix it.


Under what circumstances does it trigger?

What are the observed effects when it triggers?

Please always include this sort of information when sending bugfixes, thanks.
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