linux-kernel - Re: [PATCH RESEND] mfd: hi655x-pmic: Fix missing return value check for devm_regmap_init_mmio

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Date:   Thu, 27 Jun 2019 14:47:48 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Axel Lin <axel.lin@...ics.com>
Cc:     Chen Feng <puck.chen@...ilicon.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH RESEND] mfd: hi655x-pmic: Fix missing return value check
 for devm_regmap_init_mmio_clk

On Thu, 27 Jun 2019, Axel Lin wrote:

> Hi Chen,
> 
> Chen Feng <puck.chen@...ilicon.com> 於 2019年6月27日 週四 上午10:03寫道：
> >
> > Thanks
> I assume this is an Ack.
> If you can add your Acked-by in the reply, it's easier for maintainer to accept
> the patch.

Looks to me like he already Acked it.

Which is looks like you already applied?

> > On 2019/6/26 21:30, Axel Lin wrote:
> > > Since devm_regmap_init_mmio_clk can fail, add return value checking.
> > >
> > > Signed-off-by: Axel Lin <axel.lin@...ics.com>
> > > Acked-by: Chen Feng <puck.chen@...ilicon.com>
> > > ---
> > > This was sent on https://lkml.org/lkml/2019/3/6/904
> > >
> > >   drivers/mfd/hi655x-pmic.c | 2 ++
> > >   1 file changed, 2 insertions(+)
> > >
> > > diff --git a/drivers/mfd/hi655x-pmic.c b/drivers/mfd/hi655x-pmic.c
> > > index 96c07fa1802a..6693f74aa6ab 100644
> > > --- a/drivers/mfd/hi655x-pmic.c
> > > +++ b/drivers/mfd/hi655x-pmic.c
> > > @@ -112,6 +112,8 @@ static int hi655x_pmic_probe(struct platform_device *pdev)
> > >
> > >       pmic->regmap = devm_regmap_init_mmio_clk(dev, NULL, base,
> > >                                                &hi655x_regmap_config);
> > > +     if (IS_ERR(pmic->regmap))
> > > +             return PTR_ERR(pmic->regmap);
> > >
> > >       regmap_read(pmic->regmap, HI655X_BUS_ADDR(HI655X_VER_REG), &pmic->ver);
> > >       if ((pmic->ver < PMU_VER_START) || (pmic->ver > PMU_VER_END)) {
> > >
> >

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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