linux-kernel - Re: [PATCH 3/5] thermal: exynos: Use IS_ERR() because regulator cannot be NULL

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Message-id: <20151104121754.70c5f148@amdc2363>
Date:	Wed, 04 Nov 2015 12:17:54 +0100
From:	Lukasz Majewski <l.majewski@...sung.com>
To:	Alim Akhtar <alim.akhtar@...il.com>
Cc:	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Zhang Rui <rui.zhang@...el.com>,
	Eduardo Valentin <edubezval@...il.com>,
	Kukjin Kim <kgene@...nel.org>, linux-pm@...r.kernel.org,
	"linux-samsung-soc@...r.kernel.org" 
	<linux-samsung-soc@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/5] thermal: exynos: Use IS_ERR() because regulator cannot
 be NULL

Hi Alim,

> Hello,
> 
> On Thu, Oct 8, 2015 at 11:04 AM, Krzysztof Kozlowski
> <k.kozlowski@...sung.com> wrote:
> > The NULL check in probe's error path is not needed because in that
> > time the regulator cannot be NULL (regulator_get() returns valid
> > pointer or ERR_PTR).
> >
> > Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> > ---
> Reviewed-by: Alim Akhtar <alim.akhtar@...sung.com>
> 
> >  drivers/thermal/samsung/exynos_tmu.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/thermal/samsung/exynos_tmu.c
> > b/drivers/thermal/samsung/exynos_tmu.c index
> > bc71a61f0c4a..eac6aebf82f3 100644 ---
> > a/drivers/thermal/samsung/exynos_tmu.c +++
> > b/drivers/thermal/samsung/exynos_tmu.c @@ -1396,7 +1396,7 @@
> > err_clk_sec: if (!IS_ERR(data->clk_sec))
> >                 clk_unprepare(data->clk_sec);
> >  err_sensor:
> > -       if (!IS_ERR_OR_NULL(data->regulator))
> > +       if (!IS_ERR(data->regulator))
> >                 regulator_disable(data->regulator);
> >
> >         return ret;
> > --
> > 1.9.1
> >
> > --
> > To unsubscribe from this list: send the line "unsubscribe
> > linux-samsung-soc" in the body of a message to
> > majordomo@...r.kernel.org More majordomo info at
> > http://vger.kernel.org/majordomo-info.html
> 
> 
> 

Acked-by: Lukasz Majewski <l.majewski@...sung.com>
Tested-by: Lukasz Majewski <l.majewski@...sung.com>

-- 
Best regards,

Lukasz Majewski

Samsung R&D Institute Poland (SRPOL) | Linux Platform Group
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