linux-kernel - Re: [PATCH 7/7] extcon: usbc-cros-ec: Convert to platform remove callback returning void

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Message-ID: <ZdwmJNGLJgAa5Z45@google.com>
Date: Mon, 26 Feb 2024 13:48:20 +0800
From: Tzung-Bi Shih <tzungbi@...nel.org>
To: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
Cc: MyungJoo Ham <myungjoo.ham@...sung.com>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	Benson Leung <bleung@...omium.org>,
	Guenter Roeck <groeck@...omium.org>, linux-kernel@...r.kernel.org,
	chrome-platform@...ts.linux.dev
Subject: Re: [PATCH 7/7] extcon: usbc-cros-ec: Convert to platform remove
 callback returning void

On Sun, Feb 25, 2024 at 04:54:56PM +0100, 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: Tzung-Bi Shih <tzungbi@...nel.org>