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Date:   Mon, 5 Dec 2022 17:07:52 +0100
From:   Greg KH <gregkh@linuxfoundation.org>
To:     Dawei Li <set_pte_at@outlook.com>
Cc:     johannes@sipsolutions.net, robert.jarzmik@free.fr, jgross@suse.com,
        sstabellini@kernel.org, oleksandr_tyshchenko@epam.com,
        roger.pau@citrix.com, srinivas.kandagatla@linaro.org,
        bgoswami@quicinc.com, mpe@ellerman.id.au, npiggin@gmail.com,
        christophe.leroy@csgroup.eu, kys@microsoft.com,
        haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com,
        alsa-devel@alsa-project.org, linuxppc-dev@lists.ozlabs.org,
        xen-devel@lists.xenproject.org, linux-hyperv@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH 6/6] soundbus: make remove callback of soundbus driver
 void returned
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References: <20221205153644.60909-1-set_pte_at@outlook.com>
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On Mon, Dec 05, 2022 at 11:36:44PM +0800, Dawei Li wrote:
> Since commit fc7a6209d571 ("bus: Make remove callback return
> void") forces bus_type::remove be void-returned, it doesn't
> make much sense for any bus based driver implementing remove
> callbalk to return non-void to its caller.
> 
> This change is for soundbus based drivers.
> 
> Signed-off-by: Dawei Li <set_pte_at@outlook.com>
> ---
>  sound/aoa/fabrics/layout.c    | 3 +--
>  sound/aoa/soundbus/soundbus.h | 6 +++---
>  2 files changed, 4 insertions(+), 5 deletions(-)
> 
> diff --git a/sound/aoa/fabrics/layout.c b/sound/aoa/fabrics/layout.c
> index ec4ef18555bc..850dc8c53e9b 100644
> --- a/sound/aoa/fabrics/layout.c
> +++ b/sound/aoa/fabrics/layout.c
> @@ -1094,7 +1094,7 @@ static int aoa_fabric_layout_probe(struct soundbus_dev *sdev)
>  	return -ENODEV;
>  }
>  
> -static int aoa_fabric_layout_remove(struct soundbus_dev *sdev)
> +static void aoa_fabric_layout_remove(struct soundbus_dev *sdev)
>  {
>  	struct layout_dev *ldev = dev_get_drvdata(&sdev->ofdev.dev);
>  	int i;
> @@ -1123,7 +1123,6 @@ static int aoa_fabric_layout_remove(struct soundbus_dev *sdev)
>  	kfree(ldev);
>  	sdev->pcmid = -1;
>  	sdev->pcmname = NULL;
> -	return 0;
>  }
>  
>  #ifdef CONFIG_PM_SLEEP
> diff --git a/sound/aoa/soundbus/soundbus.h b/sound/aoa/soundbus/soundbus.h
> index 3a99c1f1a3ca..230dfa1ba270 100644
> --- a/sound/aoa/soundbus/soundbus.h
> +++ b/sound/aoa/soundbus/soundbus.h
> @@ -184,10 +184,10 @@ struct soundbus_driver {
>  
>  	/* we don't implement any matching at all */
>  
> -	int	(*probe)(struct soundbus_dev* dev);
> -	int	(*remove)(struct soundbus_dev* dev);
> +	int	(*probe)(struct soundbus_dev *dev);

Why change this line too?

thanks,

greg k-h