linux-kernel - Re: [PATCH AUTOSEL 6.1 02/25] regulator: irq

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Date: Mon, 13 May 2024 10:19:33 +0200
From: Pavel Machek <pavel@...x.de>
To: Sasha Levin <sashal@...nel.org>
Cc: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	Matti Vaittinen <mazziesaccount@...il.com>,
	Mark Brown <broonie@...nel.org>, lgirdwood@...il.com
Subject: Re: [PATCH AUTOSEL 6.1 02/25] regulator: irq_helpers: duplicate IRQ
 name

Hi!

> The regulator IRQ helper requires caller to provide pointer to IRQ name
> which is kept in memory by caller. All other data passed to the helper
> in the regulator_irq_desc structure is copied. This can cause some
> confusion and unnecessary complexity.
> 
> Make the regulator_irq_helper() to copy also the provided IRQ name
> information so caller can discard the name after the call to
> regulator_irq_helper() completes.

Does this fix a bug in 6.1? It looks like preparation...

Best regards,
							Pavel

> +++ b/drivers/regulator/irq_helpers.c
> @@ -352,6 +352,9 @@ void *regulator_irq_helper(struct device *dev,
>  
>  	h->irq = irq;
>  	h->desc = *d;
> +	h->desc.name = devm_kstrdup(dev, d->name, GFP_KERNEL);
> +	if (!h->desc.name)
> +		return ERR_PTR(-ENOMEM);
>  
>  	ret = init_rdev_state(dev, h, rdev, common_errs, per_rdev_errs,
>  			      rdev_amount);

-- 
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HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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