| Message ID | 20210605022446.4119978-1-yangyingliang@huawei.com |
|---|---|
| State | New |
| Headers | show |
| Series | [net-next,v3] mfd: pm8008: Fix return value check in pm8008_probe() | expand |
On Sat, Jun 05, 2021 at 10:33:44PM -0500, Bjorn Andersson wrote: > On Fri 04 Jun 21:24 CDT 2021, 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> > > Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Acked-by: Guru Das Srinagesh <gurus@codeaurora.org> > > > --- > > v3: > > return PTR_ERR(chip->regmap) instead of ENODEV > > --- > > drivers/mfd/qcom-pm8008.c | 4 ++-- > > 1 file changed, 2 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/mfd/qcom-pm8008.c b/drivers/mfd/qcom-pm8008.c > > index c472d7f8103c..fb8915a682ad 100644 > > --- a/drivers/mfd/qcom-pm8008.c > > +++ b/drivers/mfd/qcom-pm8008.c > > @@ -228,8 +228,8 @@ static int pm8008_probe(struct i2c_client *client) > > > > chip->dev = &client->dev; > > chip->regmap = devm_regmap_init_i2c(client, &qcom_mfd_regmap_cfg); > > - if (!chip->regmap) > > - return -ENODEV; > > + if (IS_ERR(chip->regmap)) > > + return PTR_ERR(chip->regmap); > > > > i2c_set_clientdata(client, chip); > > > > -- > > 2.25.1 > >
diff --git a/drivers/mfd/qcom-pm8008.c b/drivers/mfd/qcom-pm8008.c index c472d7f8103c..fb8915a682ad 100644 --- a/drivers/mfd/qcom-pm8008.c +++ b/drivers/mfd/qcom-pm8008.c @@ -228,8 +228,8 @@ static int pm8008_probe(struct i2c_client *client) chip->dev = &client->dev; chip->regmap = devm_regmap_init_i2c(client, &qcom_mfd_regmap_cfg); - if (!chip->regmap) - return -ENODEV; + if (IS_ERR(chip->regmap)) + return PTR_ERR(chip->regmap); i2c_set_clientdata(client, chip);
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> --- v3: return PTR_ERR(chip->regmap) instead of ENODEV --- drivers/mfd/qcom-pm8008.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)