linux-kernel - Re: [PATCH v2 2/2] spi: octeon: Add thunderx driver

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Message-ID: <20160801172838.GW10376@sirena.org.uk>
Date:	Mon, 1 Aug 2016 18:28:38 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Jan Glauber <jglauber@...ium.com>
Cc:	linux-kernel@...r.kernel.org, linux-spi@...r.kernel.org,
	David Daney <david.daney@...ium.com>,
	"Steven J . Hill" <steven.hill@...ium.com>
Subject: Re: [PATCH v2 2/2] spi: octeon: Add thunderx driver

On Thu, Jul 28, 2016 at 10:31:44AM +0200, Jan Glauber wrote:

> +config SPI_THUNDERX
> +	tristate "Cavium ThunderX SPI controller"
> +	depends on (ARM64 || CONFIG_TEST) && 64BIT && PCI

You mean COMPILE_TEST.

> +	p->clk = devm_clk_get(dev, NULL);
> +	if (IS_ERR(p->clk))
> +		goto out_unmap;

We're now just using the normal clock API which is good but I'm now
unclear what is going to ensure that the clock is there - is there some
other change elsewhere that I'm not aware of?  We're also not passing
the resulting error code back to the caller which will break deferred
probe.

> +out_clock:
> +	clk_disable_unprepare(p->clk);
> +out_clock_devm:
> +	devm_clk_put(dev, p->clk);

There's no point in using managed allocations if you're going to manually
free things...

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