netdev - Re: [PATCH 5/7] net: ethernet: ti: cpsw: Convert to platform remove callback returning void

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Message-ID: <ffdd3f62-de0b-449b-ac2c-1ed9e9e3070e@kernel.org>
Date: Sat, 18 Nov 2023 12:06:40 +0200
From: Roger Quadros <rogerq@...nel.org>
To: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
Cc: Siddharth Vadapalli <s-vadapalli@...com>,
 Ravi Gunasekaran <r-gunasekaran@...com>,
 Kumar Kartikeya Dwivedi <memxor@...il.com>,
 Stanislav Fomichev <sdf@...gle.com>,
 Jesse Brandeburg <jesse.brandeburg@...el.com>, Rob Herring
 <robh@...nel.org>, Marek Majtyka <alardam@...il.com>,
 Yunsheng Lin <linyunsheng@...wei.com>, linux-omap@...r.kernel.org,
 netdev@...r.kernel.org, kernel@...gutronix.de
Subject: Re: [PATCH 5/7] net: ethernet: ti: cpsw: Convert to platform remove
 callback returning void



On 17/11/2023 11:17, 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: Roger Quadros <rogerq@...nel.org>