linux-kernel - Re: [PATCH 1/3] usb: typec: drop check because i2c_unregister

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Message-ID: <ZQ1ycKqP37jTYYGX@kuha.fi.intel.com>
Date:   Fri, 22 Sep 2023 13:54:40 +0300
From:   Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To:     Wolfram Sang <wsa+renesas@...g-engineering.com>
Cc:     linux-renesas-soc@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] usb: typec: drop check because
 i2c_unregister_device() is NULL safe

On Fri, Sep 22, 2023 at 10:04:18AM +0200, Wolfram Sang wrote:
> No need to check the argument of i2c_unregister_device() because the
> function itself does it.
> 
> Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>

Acked-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>

> ---
> Build tested only. Please apply to your tree.
> 
>  drivers/usb/typec/anx7411.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/usb/typec/anx7411.c b/drivers/usb/typec/anx7411.c
> index 221604f933a4..b12a07edc71b 100644
> --- a/drivers/usb/typec/anx7411.c
> +++ b/drivers/usb/typec/anx7411.c
> @@ -1550,8 +1550,7 @@ static void anx7411_i2c_remove(struct i2c_client *client)
>  	if (plat->workqueue)
>  		destroy_workqueue(plat->workqueue);
>  
> -	if (plat->spi_client)
> -		i2c_unregister_device(plat->spi_client);
> +	i2c_unregister_device(plat->spi_client);
>  
>  	if (plat->typec.role_sw)
>  		usb_role_switch_put(plat->typec.role_sw);
> -- 
> 2.30.2

-- 
heikki