linux-kernel - Re: [PATCH v2 04/15] mux: add mux_chip

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Message-ID: <g2ikrrzfti3qu2n75f4wdrg5hxdvsgwol5uibaem7btksxce3c@vh6qvabzs44p>
Date: Mon, 29 Jan 2024 23:54:03 +0100
From: Andi Shyti <andi.shyti@...nel.org>
To: Thomas Richard <thomas.richard@...tlin.com>
Cc: Linus Walleij <linus.walleij@...aro.org>, 
	Bartosz Golaszewski <brgl@...ev.pl>, Andy Shevchenko <andy@...nel.org>, 
	Tony Lindgren <tony@...mide.com>, Haojian Zhuang <haojian.zhuang@...aro.org>, 
	Vignesh R <vigneshr@...com>, Aaro Koskinen <aaro.koskinen@....fi>, 
	Janusz Krzysztofik <jmkrzyszt@...il.com>, Peter Rosin <peda@...ntia.se>, Vinod Koul <vkoul@...nel.org>, 
	Kishon Vijay Abraham I <kishon@...nel.org>, Philipp Zabel <p.zabel@...gutronix.de>, 
	Tom Joseph <tjoseph@...ence.com>, Lorenzo Pieralisi <lpieralisi@...nel.org>, 
	Krzysztof Wilczyński <kw@...ux.com>, Rob Herring <robh@...nel.org>, 
	Bjorn Helgaas <bhelgaas@...gle.com>, linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-omap@...r.kernel.org, linux-i2c@...r.kernel.org, 
	linux-phy@...ts.infradead.org, linux-pci@...r.kernel.org, gregory.clement@...tlin.com, 
	theo.lebrun@...tlin.com, thomas.petazzoni@...tlin.com, u-kumar1@...com
Subject: Re: [PATCH v2 04/15] mux: add mux_chip_resume() function

Hi Thomas,

..

> +/**
> + * mux_chip_resume() - restores the mux-chip state
> + * @mux_chip: The mux-chip to resume.
> + *
> + * Restores the mux-chip state.
> + *
> + * Return: Zero on success or a negative errno on error.
> + */
> +int mux_chip_resume(struct mux_chip *mux_chip)
> +{
> +	int ret, i;

you could put this 'ret' in the innermost indentation part, which
here is inside the 'if (...)' (or inside the 'for (...)' if you
follow Andy's suggestion).

Andi

> +	for (i = 0; i < mux_chip->controllers; ++i) {
> +		struct mux_control *mux = &mux_chip->mux[i];
> +
> +		if (mux->cached_state != MUX_CACHE_UNKNOWN) {
> +			ret = mux_control_set(mux, mux->cached_state);
> +			if (ret < 0) {
> +				dev_err(&mux_chip->dev, "unable to restore state\n");
> +				return ret;
> +			}
> +		}
> +	}
> +	return 0;
> +}
> +EXPORT_SYMBOL_GPL(mux_chip_resume);