netdev - Re: [PATCH next] net: rfkill: gpio: Convert to platform remove callback returning void

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Message-ID: <1701a746-7607-4890-9a59-9b6fc9817ec9@quicinc.com>
Date: Wed, 6 Mar 2024 11:51:48 -0800
From: Jeff Johnson <quic_jjohnson@...cinc.com>
To: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
        Johannes Berg <johannes@...solutions.net>
CC: "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet
	<edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni
	<pabeni@...hat.com>, <linux-wireless@...r.kernel.org>,
        <netdev@...r.kernel.org>, <kernel@...gutronix.de>
Subject: Re: [PATCH next] net: rfkill: gpio: Convert to platform remove
 callback returning void

On 3/6/2024 10:35 AM, Uwe Kleine-König wrote:
> The .remove() callback for a platform driver returns an int which makes
> many driver authors wrongly assume it's possible to do error handling by
> returning an error code. However the value returned is ignored (apart
> from emitting a warning) and this typically results in resource leaks.
> 
> To improve here there is a quest to make the remove callback return
> void. In the first step of this quest all drivers are converted to
> .remove_new(), which already returns void. Eventually after all drivers
> are converted, .remove_new() will be renamed to .remove().
> 
> Trivially convert this driver from always returning zero in the remove
> callback to the void returning variant.
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
Reviewed-by: Jeff Johnson <quic_jjohnson@...cinc.com>