linux-kernel - Re: [PATCH] pwm: spear: fix check on pwmchip

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Message-ID: <CAKohpomkrR715dhyZZQwu_-S6LHsYBOj9YsX9HR6PCMKkMdrVw@mail.gmail.com>
Date:	Wed, 7 May 2014 14:02:24 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Thierry Reding <thierry.reding@...il.com>
Cc:	Beniamino Galvani <b.galvani@...il.com>, linux-pwm@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] pwm: spear: fix check on pwmchip_add() return value

On 7 May 2014 13:54, Thierry Reding <thierry.reding@...il.com> wrote:
> So the current code would run clk_unprepare() on success, but not on
> failure. Does that cause any harm?

Yeah, that would make the device unusable  as clk_enable will always fail.

> Is the device still usable after this?

Yes, this will fix the bug.

> I'm asking because I'm not sure if this is linux-next material
> or should be a fix for 3.15 (and possibly backported to stable).

IMO, it should be sent for stable: v3.8+
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