linux-kernel - Re: [PATCH net] mvpp2: fix panic on module removal

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Message-Id: <20190805.105800.1380680189003158228.davem@davemloft.net>
Date:   Mon, 05 Aug 2019 10:58:00 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     mcroce@...hat.com
Cc:     netdev@...r.kernel.org, miquel.raynal@...e-electrons.com,
        linux-kernel@...r.kernel.org, lorenzo@...nel.org,
        antoine.tenart@...tlin.com, maxime.chevallier@...tlin.com
Subject: Re: [PATCH net] mvpp2: fix panic on module removal

From: Matteo Croce <mcroce@...hat.com>
Date: Wed, 31 Jul 2019 20:31:16 +0200

> mvpp2 uses a delayed workqueue to gather traffic statistics.
> On module removal the workqueue can be destroyed before calling
> cancel_delayed_work_sync() on its works.
> Fix it by moving the destroy_workqueue() call after mvpp2_port_remove().

Please post a new version with the flush_workqueue() removed.