netdev - Re: [PATCH net v2] cxgb4: Fix race condition in cleanup

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Date:	Thu, 21 Aug 2014 21:45:47 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	anish@...lsio.com
Cc:	netdev@...r.kernel.org, hariprasad@...lsio.com, leedom@...lsio.com,
	svemuri@...lsio.com, nhorman@...hat.com
Subject: Re: [PATCH net v2] cxgb4: Fix race condition in cleanup

From: Anish Bhatt <anish@...lsio.com>
Date: Wed, 20 Aug 2014 13:44:06 -0700

> There is a possible race condition when we unregister the PCI Driver and then
> flush/destroy the global "workq". This could lead to situations where there
> are tasks on the Work Queue with references to now deleted adapter data
> structures. Instead, have per-adapter Work Queues which were instantiated and
> torn down in init_one() and remove_one(), respectively.
> 
> v2: Remove unnecessary call to flush_workqueue() before destroy_workqueue()
> 
> Signed-off-by: Anish Bhatt <anish@...lsio.com>
> Signed-off-by: Casey Leedom <leedom@...lsio.com>

Applied thanks.
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