linux-kernel - Re: [PATCH v3 08/19] clk: tegra: add common infra for DT clocks

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Message-ID: <525D9117.9050009@wwwdotorg.org>
Date:	Tue, 15 Oct 2013 13:01:43 -0600
From:	Stephen Warren <swarren@...dotorg.org>
To:	Peter De Schrijver <pdeschrijver@...dia.com>
CC:	Prashant Gaikwad <pgaikwad@...dia.com>,
	Mike Turquette <mturquette@...aro.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Rob Herring <rob.herring@...xeda.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Hiroshi Doyu <hdoyu@...dia.com>, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-tegra@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: Re: [PATCH v3 08/19] clk: tegra: add common infra for DT clocks

On 10/15/2013 08:52 AM, Peter De Schrijver wrote:
> Introduce a common infrastructure for sharing clock initialization between
> SoCs.

> diff --git a/drivers/clk/tegra/clk.c b/drivers/clk/tegra/clk.c

> +struct clk ** __init tegra_lookup_dt_id(int clk_id,
> +					struct tegra_clk *tegra_clk)
> +{
> +	if (tegra_clk[clk_id].present)
> +		return &clks[tegra_clk[clk_id].dt_id];
> +	else
> +		return NULL;

Does this need range-checking? Or do we assume that since this is an
internal function, "clk_id" will never be out-of-range?
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