linux-kernel - Re: [PATCH] samples: qmi: Convert to platform remove callback returning void

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Message-ID: <g5iy5jov5uufi4oxdfgagqln6odwgdilrbbhsg3lkdidkvybbg@qbmsipcojt4t>
Date: Fri, 12 Apr 2024 14:20:12 +0200
From: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
To: Bjorn Andersson <andersson@...nel.org>
Cc: linux-kernel@...r.kernel.org, kernel@...gutronix.de
Subject: Re: [PATCH] samples: qmi: Convert to platform remove callback
 returning void

Hello Bjorn,

On Fri, Mar 08, 2024 at 09:51:21AM +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>

This patch didn't receive any feedback yet, I guess because I used an
old email address for Bjorn. I updated the address for this mail now.

Would you consider applying this patch; please tell me if I should
resend.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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