linux-kernel - Re: [PATCH 4/4] gpu: ipu-v3: Convert to platform remove callback returning void

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Message-ID: <4969fb7a602fca2354b8d812a0f48bf495d7941e.camel@pengutronix.de>
Date: Wed, 10 Apr 2024 10:29:25 +0200
From: Philipp Zabel <p.zabel@...gutronix.de>
To: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>, 
	David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/4] gpu: ipu-v3: Convert to platform remove callback
 returning void

On Di, 2024-04-09 at 19:02 +0200, 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 the ipu-v3 platform drivers 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: Philipp Zabel <p.zabel@...gutronix.de>

regards
Philipp