linux-kernel - Re: [PATCH] media: imx7-mipi-csis: Add the missed v4l2_async_notifier

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Message-ID: <20191211105908.dw4lnuble3ejlnil@arch-thunder.localdomain>
Date:   Wed, 11 Dec 2019 10:59:08 +0000
From:   Rui Miguel Silva <rmfrfs@...il.com>
To:     Chuhong Yuan <hslester96@...il.com>
Cc:     Steve Longerbeam <slongerbeam@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        linux-media@...r.kernel.org, devel@...verdev.osuosl.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] media: imx7-mipi-csis: Add the missed
 v4l2_async_notifier_cleanup in remove

Hi Chuhong,
Thanks for the patch.

On Mon, Dec 09, 2019 at 04:58:28PM +0800, Chuhong Yuan wrote:
> All drivers in imx call v4l2_async_notifier_cleanup() after unregistering
> the notifier except this driver.
> This should be a miss and we need to add the call to fix it.
> 
> Signed-off-by: Chuhong Yuan <hslester96@...il.com>

Reviewed-by: Rui Miguel Silva <rmfrfs@...il.com>

------
Cheers,
     Rui
> ---
>  drivers/staging/media/imx/imx7-mipi-csis.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/staging/media/imx/imx7-mipi-csis.c b/drivers/staging/media/imx/imx7-mipi-csis.c
> index 99166afca071..2bfa85bb84e7 100644
> --- a/drivers/staging/media/imx/imx7-mipi-csis.c
> +++ b/drivers/staging/media/imx/imx7-mipi-csis.c
> @@ -1105,6 +1105,7 @@ static int mipi_csis_remove(struct platform_device *pdev)
>  	mipi_csis_debugfs_exit(state);
>  	v4l2_async_unregister_subdev(&state->mipi_sd);
>  	v4l2_async_notifier_unregister(&state->subdev_notifier);
> +	v4l2_async_notifier_cleanup(&state->subdev_notifier);
>  
>  	pm_runtime_disable(&pdev->dev);
>  	mipi_csis_pm_suspend(&pdev->dev, true);
> -- 
> 2.24.0
>