linux-kernel - Re: [PATCH] Bluetooth: hci_qca: Use del_timer

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Message-ID: <20220406114654.3c0e17a8@gandalf.local.home>
Date:   Wed, 6 Apr 2022 11:46:54 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     Eric Dumazet <eric.dumazet@...il.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        Ben Young Tae Kim <ytkim@....qualcomm.com>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] Bluetooth: hci_qca: Use del_timer_sync() before freeing

On Wed, 6 Apr 2022 08:39:07 -0700
Guenter Roeck <linux@...ck-us.net> wrote:

> > ie move this destroy_workqueue() up ?
> >   
> 
> What prevents the timer code from queueing work into the destroyed
> workqueue ?

So we have a chicken verses egg issue here?

-- Steve