Re: [PATCH AUTOSEL 6.3 34/44] media: cros-ec-cec: Don't exit early in .remove() callback

[Uwe Kleine-König]

Hello,

On Sun, Apr 30, 2023 at 10:56:22PM -0400, Sasha Levin wrote:
> From: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
> 
> [ Upstream commit 0ff7aee24e47beb4306ce050824b54147f2fabfa ]
> 
> Exiting early in remove without releasing all acquired resources yields
> leaks. Note that e.g. memory allocated with devm_zalloc() is freed after
> .remove() returns, even if the return code was negative.
> 
> While blocking_notifier_chain_unregister() won't fail and so the
> change is somewhat cosmetic, platform driver's .remove callbacks are
> about to be converted to return void. To prepare that, keep the error
> message but don't return early.
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
> Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

While I'm positive this change doesn't break anything, it also doesn't
fix anything and is only cosmetic (+ preparing a later change).

Unless you need it as a dependency I'd say, don't backport it for
stable.

Best regards
Uwe

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

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