linux-kernel - Re: [PATCH 6/6] soundbus: make remove callback of soundbus driver void returned

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Message-ID: <Y44XWIqnKwE7ntPL@kroah.com>
Date:   Mon, 5 Dec 2022 17:07:52 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Dawei Li <set_pte_at@...look.com>
Cc:     johannes@...solutions.net, robert.jarzmik@...e.fr, jgross@...e.com,
        sstabellini@...nel.org, oleksandr_tyshchenko@...m.com,
        roger.pau@...rix.com, srinivas.kandagatla@...aro.org,
        bgoswami@...cinc.com, mpe@...erman.id.au, npiggin@...il.com,
        christophe.leroy@...roup.eu, kys@...rosoft.com,
        haiyangz@...rosoft.com, wei.liu@...nel.org, decui@...rosoft.com,
        alsa-devel@...a-project.org, linuxppc-dev@...ts.ozlabs.org,
        xen-devel@...ts.xenproject.org, linux-hyperv@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 6/6] soundbus: make remove callback of soundbus driver
 void returned

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@...look.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