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SubjectRe: [PATCH -next] mfd: pm8008: Fix return value check in pm8008_probe()
On Thu, Jun 03, 2021 at 08:31:28PM +0300, Dmitry Baryshkov wrote:
> On Thu, 3 Jun 2021 at 20:18, Guru Das Srinagesh <gurus@codeaurora.org> wrote:
> >
> > On Thu, Jun 03, 2021 at 10:13:57PM +0800, Yang Yingliang wrote:
> > > In case of error, the function devm_regmap_init_i2c() returns ERR_PTR()
> > > and never returns NULL. The NULL test in the return value check
> > > should be replaced with IS_ERR().
> > >
> > > Fixes: 6b149f3310a4 ("mfd: pm8008: Add driver for QCOM PM8008 PMIC")
> > > Reported-by: Hulk Robot <hulkci@huawei.com>
> > > Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
> >
> > Acked-by: Guru Das Srinagesh <gurus@codeaurora.org>
>
> Interestingly, the change does not correspond to the changelog
> message. And the code is correct as devm_kzalloc returns NULL if I
> remember correctly.

Thanks for pointing that out - I missed that. I would like to retract my
Acked-by for this patch.

>
> >
> > > ---
> > > drivers/mfd/qcom-pm8008.c | 2 +-
> > > 1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/mfd/qcom-pm8008.c b/drivers/mfd/qcom-pm8008.c
> > > index c472d7f8103c..dfefa60d693b 100644
> > > --- a/drivers/mfd/qcom-pm8008.c
> > > +++ b/drivers/mfd/qcom-pm8008.c
> > > @@ -223,7 +223,7 @@ static int pm8008_probe(struct i2c_client *client)
> > > struct pm8008_data *chip;
> > >
> > > chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
> > > - if (!chip)
> > > + if (IS_ERR(chip))
> > > return -ENOMEM;
> > >
> > > chip->dev = &client->dev;
> > > --
> > > 2.25.1
> > >
>
>
>
> --
> With best wishes
> Dmitry

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