netdev - Re: [PATCH 6/6] i2c: Make remove callback return void

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <d682fb60-c254-f89e-5d6d-cdf7aa752939@lucaceresoli.net>
Date:   Wed, 29 Jun 2022 23:20:04 +0200
From:   Luca Ceresoli <luca@...aceresoli.net>
To:     Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
        Wolfram Sang <wsa@...nel.org>
Cc:     linux-i2c@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linuxppc-dev@...ts.ozlabs.org,
        openipmi-developer@...ts.sourceforge.net,
        linux-integrity@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-crypto@...r.kernel.org, linux-gpio@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, chrome-platform@...ts.linux.dev,
        linux-rpi-kernel@...ts.infradead.org, linux-input@...r.kernel.org,
        linux-hwmon@...r.kernel.org, linux-iio@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-leds@...r.kernel.org, linux-media@...r.kernel.org,
        patches@...nsource.cirrus.com, alsa-devel@...a-project.org,
        linux-omap@...r.kernel.org, linux-mtd@...ts.infradead.org,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        platform-driver-x86@...r.kernel.org,
        acpi4asus-user@...ts.sourceforge.net, linux-pm@...r.kernel.org,
        linux-pwm@...r.kernel.org, linux-rtc@...r.kernel.org,
        linux-staging@...ts.linux.dev, linux-serial@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-fbdev@...r.kernel.org,
        linux-watchdog@...r.kernel.org, kasan-dev@...glegroups.com,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH 6/6] i2c: Make remove callback return void

Hi,

[keeping only individuals and lists in Cc to avoid bounces]

On 28/06/22 16:03, Uwe Kleine-König wrote:
> From: Uwe Kleine-König <uwe@...ine-koenig.org>
> 
> The value returned by an i2c driver's remove function is mostly ignored.
> (Only an error message is printed if the value is non-zero that the
> error is ignored.)
> 
> So change the prototype of the remove function to return no value. This
> way driver authors are not tempted to assume that passing an error to
> the upper layer is a good idea. All drivers are adapted accordingly.
> There is no intended change of behaviour, all callbacks were prepared to
> return 0 before.
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>

For versaclock:

> diff --git a/drivers/clk/clk-versaclock5.c b/drivers/clk/clk-versaclock5.c
> index e7be3e54b9be..657493ecce4c 100644
> --- a/drivers/clk/clk-versaclock5.c
> +++ b/drivers/clk/clk-versaclock5.c
> @@ -1138,7 +1138,7 @@ static int vc5_probe(struct i2c_client *client)
>  	return ret;
>  }
>  
> -static int vc5_remove(struct i2c_client *client)
> +static void vc5_remove(struct i2c_client *client)
>  {
>  	struct vc5_driver_data *vc5 = i2c_get_clientdata(client);
>  
> @@ -1146,8 +1146,6 @@ static int vc5_remove(struct i2c_client *client)
>  
>  	if (vc5->chip_info->flags & VC5_HAS_INTERNAL_XTAL)
>  		clk_unregister_fixed_rate(vc5->pin_xin);
> -
> -	return 0;
>  }
>  
>  static int __maybe_unused vc5_suspend(struct device *dev)

Reviewed-by: Luca Ceresoli <luca@...aceresoli.net>
Reviewed-by: Luca Ceresoli <luca.ceresoli@...tlin.com>

-- 
Luca