linux-kernel - Re: [PATCH RFC v1 3/5] clk: remove unneeded __clk_enable and __clk

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Date:	Thu, 30 Apr 2015 12:09:18 -0700
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Dong Aisheng <aisheng.dong@...escale.com>,
	linux-clk@...r.kernel.org
CC:	linux-kernel@...r.kernel.org, mturquette@...aro.org,
	shawn.guo@...aro.org, b29396@...escale.com,
	linux-arm-kernel@...ts.infradead.org,
	Ranjani.Vaidyanathan@...escale.com, b20596@...escale.com,
	r64343@...escale.com, b20788@...escale.com
Subject: Re: [PATCH RFC v1 3/5] clk: remove unneeded __clk_enable and __clk_disable

On 04/15/15 07:26, Dong Aisheng wrote:
> The only thing __clk_enable/__clk_disable does is NULL pointer checking
> of clk except calling clk_core_{enable|disable} which is already handled
> by clk_core_{enable|disable}.
> So remove this unneeded function.
>
> Cc: Mike Turquette <mturquette@...aro.org>
> Cc: Stephen Boyd <sboyd@...eaurora.org>
> Signed-off-by: Dong Aisheng <aisheng.dong@...escale.com>
> ---

No. You can call clk_enable() and clk_disable() with NULL and it should
be a no-op. With this change it would cause a NULL pointer exception.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

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