* [PATCH -next] mfd: pm8008: Fix return value check in pm8008_probe() @ 2021-06-03 14:13 Yang Yingliang 2021-06-03 17:12 ` Guru Das Srinagesh 0 siblings, 1 reply; 5+ messages in thread From: Yang Yingliang @ 2021-06-03 14:13 UTC (permalink / raw) To: linux-kernel, linux-arm-msm; +Cc: lee.jones, agross, gurus 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> --- 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 ^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH -next] mfd: pm8008: Fix return value check in pm8008_probe() 2021-06-03 14:13 [PATCH -next] mfd: pm8008: Fix return value check in pm8008_probe() Yang Yingliang @ 2021-06-03 17:12 ` Guru Das Srinagesh 2021-06-03 17:31 ` Dmitry Baryshkov 0 siblings, 1 reply; 5+ messages in thread From: Guru Das Srinagesh @ 2021-06-03 17:12 UTC (permalink / raw) To: Yang Yingliang; +Cc: linux-kernel, linux-arm-msm, lee.jones, agross 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> > --- > 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 > ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH -next] mfd: pm8008: Fix return value check in pm8008_probe() 2021-06-03 17:12 ` Guru Das Srinagesh @ 2021-06-03 17:31 ` Dmitry Baryshkov 2021-06-03 19:05 ` Guru Das Srinagesh 0 siblings, 1 reply; 5+ messages in thread From: Dmitry Baryshkov @ 2021-06-03 17:31 UTC (permalink / raw) To: Guru Das Srinagesh Cc: Yang Yingliang, open list, open list:DRM DRIVER FOR MSM ADRENO GPU, Lee Jones, Andy Gross 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. > > > --- > > 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 ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH -next] mfd: pm8008: Fix return value check in pm8008_probe() 2021-06-03 17:31 ` Dmitry Baryshkov @ 2021-06-03 19:05 ` Guru Das Srinagesh 2021-06-04 1:26 ` Yang Yingliang 0 siblings, 1 reply; 5+ messages in thread From: Guru Das Srinagesh @ 2021-06-03 19:05 UTC (permalink / raw) To: Dmitry Baryshkov Cc: Yang Yingliang, open list, open list:DRM DRIVER FOR MSM ADRENO GPU, Lee Jones, Andy Gross 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 ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH -next] mfd: pm8008: Fix return value check in pm8008_probe() 2021-06-03 19:05 ` Guru Das Srinagesh @ 2021-06-04 1:26 ` Yang Yingliang 0 siblings, 0 replies; 5+ messages in thread From: Yang Yingliang @ 2021-06-04 1:26 UTC (permalink / raw) To: Guru Das Srinagesh, Dmitry Baryshkov Cc: open list, open list:DRM DRIVER FOR MSM ADRENO GPU, Lee Jones, Andy Gross On 2021/6/4 3:05, Guru Das Srinagesh wrote: > 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. My bad, I sent a wong patch, I will send a new one. Thanks, Yang > 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 > . ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2021-06-04 1:26 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2021-06-03 14:13 [PATCH -next] mfd: pm8008: Fix return value check in pm8008_probe() Yang Yingliang 2021-06-03 17:12 ` Guru Das Srinagesh 2021-06-03 17:31 ` Dmitry Baryshkov 2021-06-03 19:05 ` Guru Das Srinagesh 2021-06-04 1:26 ` Yang Yingliang
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