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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Jiale Yao <yaojiale02@163.com>
Cc: Manivannan Sadhasivam <mani@kernel.org>,
	Jeff Hugo <jeff.hugo@oss.qualcomm.com>,
	Alex Elder <elder@kernel.org>,
	mhi@lists.linux.dev, linux-arm-msm@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] bus: mhi: ep: cancel reset work during controller teardown
Date: Sun, 18 Oct 2026 08:34:06 +0200	[thread overview]
Message-ID: <2026101841-unroasted-carbon-e514@gregkh> (raw)
In-Reply-To: <20261018040614.533366-1-yaojiale02@163.com>

On Sun, Oct 18, 2026 at 12:06:14PM +0800, Jiale Yao wrote:
> The doorbell IRQ schedules reset_work on the system workqueue when the
> host requests an MHI reset. The controller teardown only drains the
> private MHI workqueue before releasing the controller state, so
> reset_work can still run after that state has been freed.
> 
> Cancel reset_work before destroying the private workqueue and releasing
> the controller resources. The caller is required to power down the
> controller first, so the IRQ can no longer queue the work at this point.
> 
> Fixes: 7a97b6b47353 ("bus: mhi: ep: Add support for handling MHI_RESET")
> Signed-off-by: Jiale Yao <yaojiale02@163.com>
> ---
>  drivers/bus/mhi/ep/main.c | 1 +
>  1 file changed, 1 insertion(+)

How was this found and tested?  What about a cc: stable?

thanks,

greg k-h

  reply	other threads:[~2026-10-18  6:34 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-18  4:06 Jiale Yao
2026-10-18  6:34 ` Greg Kroah-Hartman [this message]
2026-10-18 11:12   ` jiale yao
2026-10-18 11:14     ` jiale yao
2026-10-18 11:53     ` Greg Kroah-Hartman

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