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From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
To: Linkai Gong <gonglinkai@kylinos.cn>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Xin Ji <xji@analogixsemi.com>,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] usb: typec: anx7411 - stop the IRQ before destroying the workqueue
Date: Mon, 7 Sep 2026 12:53:35 +0200	[thread overview]
Message-ID: <ap6Xr5X64V6evYjz@black.igk.intel.com> (raw)
In-Reply-To: <20260903082254.1540271-1-gonglinkai@kylinos.cn>

On Thu, Sep 03, 2026 at 04:22:54PM +0800, Linkai Gong wrote:
> The IRQ is devm-managed, so it can still queue plat->work while
> remove() is tearing the queue down. Disable it first.
> 
> Fixes: fe6d8a9c8e64 ("usb: typec: anx7411: Add Analogix PD ANX7411 support")
> Signed-off-by: Linkai Gong <gonglinkai@kylinos.cn>
> ---
>  drivers/usb/typec/anx7411.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/typec/anx7411.c b/drivers/usb/typec/anx7411.c
> index 41df115912b9..c3d36da692e4 100644
> --- a/drivers/usb/typec/anx7411.c
> +++ b/drivers/usb/typec/anx7411.c
> @@ -1566,8 +1566,11 @@ static void anx7411_i2c_remove(struct i2c_client *client)
>  	anx7411_partner_unregister_altmode(plat);
>  	anx7411_unregister_partner(plat);
>  
> -	if (plat->workqueue)
> +	if (plat->workqueue) {
> +		disable_irq(plat->intp_irq);
> +		cancel_work_sync(&plat->work);
>  		destroy_workqueue(plat->workqueue);
> +	}

Is the workqueu necessary at all? It's threaded irq.

Thanks,


>  	i2c_unregister_device(plat->spi_client);
>  
> -- 
> 2.25.1

-- 
heikki

  reply	other threads:[~2026-09-07 10:53 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-03  8:22 [PATCH] usb: typec: anx7411 - stop the IRQ before destroying the workqueue Linkai Gong
2026-09-07 10:53 ` Heikki Krogerus [this message]
2026-09-08  3:16   ` Linkai Gong
2026-09-08  6:02   ` Linkai Gong
2026-09-08  6:03 ` [PATCH v2] " Linkai Gong
2026-09-09 14:23   ` Heikki Krogerus
2026-09-10  1:13     ` Linkai Gong
2026-09-10  1:11   ` [PATCH v3] " Linkai Gong

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