LinuxLists.cc - [PATCH] rtc: s5m: use devm_i2c_new_dummy

2021-01-05 13:50:08

Subject: [PATCH] rtc: s5m: use devm_i2c_new_dummy_device()

From: Bartosz Golaszewski <[email protected]>

Use the managed variant of i2c_new_dummy_device() to shrink code and
remove the goto label.

Signed-off-by: Bartosz Golaszewski <[email protected]>
---
drivers/rtc/rtc-s5m.c | 24 ++++++++----------------
1 file changed, 8 insertions(+), 16 deletions(-)

diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c
index eb9dde4095a9..3432c6213b4c 100644
--- a/drivers/rtc/rtc-s5m.c
+++ b/drivers/rtc/rtc-s5m.c
@@ -760,7 +760,8 @@ static int s5m_rtc_probe(struct platform_device *pdev)
return -ENODEV;
}

- info->i2c = i2c_new_dummy_device(s5m87xx->i2c->adapter, RTC_I2C_ADDR);
+ info->i2c = devm_i2c_new_dummy_device(&pdev->dev, s5m87xx->i2c->adapter,
+ RTC_I2C_ADDR);
if (IS_ERR(info->i2c)) {
dev_err(&pdev->dev, "Failed to allocate I2C for RTC\n");
return PTR_ERR(info->i2c);
@@ -768,10 +769,9 @@ static int s5m_rtc_probe(struct platform_device *pdev)

info->regmap = devm_regmap_init_i2c(info->i2c, regmap_cfg);
if (IS_ERR(info->regmap)) {
- ret = PTR_ERR(info->regmap);
dev_err(&pdev->dev, "Failed to allocate RTC register map: %d\n",
- ret);
- goto err;
+ ret);
+ return PTR_ERR(info->regmap);
}

info->dev = &pdev->dev;
@@ -781,10 +781,9 @@ static int s5m_rtc_probe(struct platform_device *pdev)
if (s5m87xx->irq_data) {
info->irq = regmap_irq_get_virq(s5m87xx->irq_data, alarm_irq);
if (info->irq <= 0) {
- ret = -EINVAL;
dev_err(&pdev->dev, "Failed to get virtual IRQ %d\n",
alarm_irq);
- goto err;
+ return -EINVAL;
}
}

@@ -797,10 +796,8 @@ static int s5m_rtc_probe(struct platform_device *pdev)
info->rtc_dev = devm_rtc_device_register(&pdev->dev, "s5m-rtc",
&s5m_rtc_ops, THIS_MODULE);

- if (IS_ERR(info->rtc_dev)) {
- ret = PTR_ERR(info->rtc_dev);
- goto err;
- }
+ if (IS_ERR(info->rtc_dev))
+ return PTR_ERR(info->rtc_dev);

if (!info->irq) {
dev_info(&pdev->dev, "Alarm IRQ not available\n");
@@ -813,15 +810,10 @@ static int s5m_rtc_probe(struct platform_device *pdev)
if (ret < 0) {
dev_err(&pdev->dev, "Failed to request alarm IRQ: %d: %d\n",
info->irq, ret);
- goto err;
+ return ret;
}

return 0;
-
-err:
- i2c_unregister_device(info->i2c);
-
- return ret;
}

static int s5m_rtc_remove(struct platform_device *pdev)
--
2.29.1

2021-01-05 16:53:37

by Krzysztof Kozlowski

[permalink] [raw]

Subject: Re: [PATCH] rtc: s5m: use devm_i2c_new_dummy_device()

On Tue, Jan 05, 2021 at 02:44:24PM +0100, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <[email protected]>
>
> Use the managed variant of i2c_new_dummy_device() to shrink code and
> remove the goto label.
>
> Signed-off-by: Bartosz Golaszewski <[email protected]>
> ---
> drivers/rtc/rtc-s5m.c | 24 ++++++++----------------
> 1 file changed, 8 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c
> index eb9dde4095a9..3432c6213b4c 100644
> --- a/drivers/rtc/rtc-s5m.c
> +++ b/drivers/rtc/rtc-s5m.c
> @@ -760,7 +760,8 @@ static int s5m_rtc_probe(struct platform_device *pdev)
> return -ENODEV;
> }
>
> - info->i2c = i2c_new_dummy_device(s5m87xx->i2c->adapter, RTC_I2C_ADDR);
> + info->i2c = devm_i2c_new_dummy_device(&pdev->dev, s5m87xx->i2c->adapter,
> + RTC_I2C_ADDR);
> if (IS_ERR(info->i2c)) {
> dev_err(&pdev->dev, "Failed to allocate I2C for RTC\n");
> return PTR_ERR(info->i2c);
> @@ -768,10 +769,9 @@ static int s5m_rtc_probe(struct platform_device *pdev)
>
> info->regmap = devm_regmap_init_i2c(info->i2c, regmap_cfg);
> if (IS_ERR(info->regmap)) {
> - ret = PTR_ERR(info->regmap);
> dev_err(&pdev->dev, "Failed to allocate RTC register map: %d\n",
> - ret);
> - goto err;
> + ret);
> + return PTR_ERR(info->regmap);
> }
>
> info->dev = &pdev->dev;
> @@ -781,10 +781,9 @@ static int s5m_rtc_probe(struct platform_device *pdev)
> if (s5m87xx->irq_data) {
> info->irq = regmap_irq_get_virq(s5m87xx->irq_data, alarm_irq);
> if (info->irq <= 0) {
> - ret = -EINVAL;
> dev_err(&pdev->dev, "Failed to get virtual IRQ %d\n",
> alarm_irq);
> - goto err;
> + return -EINVAL;
> }
> }
>
> @@ -797,10 +796,8 @@ static int s5m_rtc_probe(struct platform_device *pdev)
> info->rtc_dev = devm_rtc_device_register(&pdev->dev, "s5m-rtc",
> &s5m_rtc_ops, THIS_MODULE);
>
> - if (IS_ERR(info->rtc_dev)) {
> - ret = PTR_ERR(info->rtc_dev);
> - goto err;
> - }
> + if (IS_ERR(info->rtc_dev))
> + return PTR_ERR(info->rtc_dev);
>
> if (!info->irq) {
> dev_info(&pdev->dev, "Alarm IRQ not available\n");
> @@ -813,15 +810,10 @@ static int s5m_rtc_probe(struct platform_device *pdev)
> if (ret < 0) {
> dev_err(&pdev->dev, "Failed to request alarm IRQ: %d: %d\n",
> info->irq, ret);
> - goto err;
> + return ret;
> }
>
> return 0;
> -
> -err:
> - i2c_unregister_device(info->i2c);
> -
> - return ret;
> }
>
> static int s5m_rtc_remove(struct platform_device *pdev)

Unbind should OOPS now.

Best regards,
Krzysztof

2021-01-06 06:36:54

by Bartosz Golaszewski

[permalink] [raw]

Subject: Re: [PATCH] rtc: s5m: use devm_i2c_new_dummy_device()

On Tue, Jan 5, 2021 at 5:50 PM Krzysztof Kozlowski <[email protected]> wrote:
>
> On Tue, Jan 05, 2021 at 02:44:24PM +0100, Bartosz Golaszewski wrote:
> > From: Bartosz Golaszewski <[email protected]>
> >
> > Use the managed variant of i2c_new_dummy_device() to shrink code and
> > remove the goto label.
> >
> > Signed-off-by: Bartosz Golaszewski <[email protected]>
> > ---
> > drivers/rtc/rtc-s5m.c | 24 ++++++++----------------
> > 1 file changed, 8 insertions(+), 16 deletions(-)
> >
> > diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c
> > index eb9dde4095a9..3432c6213b4c 100644
> > --- a/drivers/rtc/rtc-s5m.c
> > +++ b/drivers/rtc/rtc-s5m.c
> > @@ -760,7 +760,8 @@ static int s5m_rtc_probe(struct platform_device *pdev)
> > return -ENODEV;
> > }
> >
> > - info->i2c = i2c_new_dummy_device(s5m87xx->i2c->adapter, RTC_I2C_ADDR);
> > + info->i2c = devm_i2c_new_dummy_device(&pdev->dev, s5m87xx->i2c->adapter,
> > + RTC_I2C_ADDR);
> > if (IS_ERR(info->i2c)) {
> > dev_err(&pdev->dev, "Failed to allocate I2C for RTC\n");
> > return PTR_ERR(info->i2c);
> > @@ -768,10 +769,9 @@ static int s5m_rtc_probe(struct platform_device *pdev)
> >
> > info->regmap = devm_regmap_init_i2c(info->i2c, regmap_cfg);
> > if (IS_ERR(info->regmap)) {
> > - ret = PTR_ERR(info->regmap);
> > dev_err(&pdev->dev, "Failed to allocate RTC register map: %d\n",
> > - ret);
> > - goto err;
> > + ret);
> > + return PTR_ERR(info->regmap);
> > }
> >
> > info->dev = &pdev->dev;
> > @@ -781,10 +781,9 @@ static int s5m_rtc_probe(struct platform_device *pdev)
> > if (s5m87xx->irq_data) {
> > info->irq = regmap_irq_get_virq(s5m87xx->irq_data, alarm_irq);
> > if (info->irq <= 0) {
> > - ret = -EINVAL;
> > dev_err(&pdev->dev, "Failed to get virtual IRQ %d\n",
> > alarm_irq);
> > - goto err;
> > + return -EINVAL;
> > }
> > }
> >
> > @@ -797,10 +796,8 @@ static int s5m_rtc_probe(struct platform_device *pdev)
> > info->rtc_dev = devm_rtc_device_register(&pdev->dev, "s5m-rtc",
> > &s5m_rtc_ops, THIS_MODULE);
> >
> > - if (IS_ERR(info->rtc_dev)) {
> > - ret = PTR_ERR(info->rtc_dev);
> > - goto err;
> > - }
> > + if (IS_ERR(info->rtc_dev))
> > + return PTR_ERR(info->rtc_dev);
> >
> > if (!info->irq) {
> > dev_info(&pdev->dev, "Alarm IRQ not available\n");
> > @@ -813,15 +810,10 @@ static int s5m_rtc_probe(struct platform_device *pdev)
> > if (ret < 0) {
> > dev_err(&pdev->dev, "Failed to request alarm IRQ: %d: %d\n",
> > info->irq, ret);
> > - goto err;
> > + return ret;
> > }
> >
> > return 0;
> > -
> > -err:
> > - i2c_unregister_device(info->i2c);
> > -
> > - return ret;
> > }
> >
> > static int s5m_rtc_remove(struct platform_device *pdev)
>
> Unbind should OOPS now.
>

Yes... Yes it should. And it won't in v2. :)

Thanks!
Bart

2021-01-06 06:49:19

by kernel test robot

[permalink] [raw]

Subject: Re: [PATCH] rtc: s5m: use devm_i2c_new_dummy_device()

Hi Bartosz,

I love your patch! Perhaps
[auto build test WARNING [also build test WARNING [If your patch is applied And when submitting patch, # install x86_64 # apt-get install # on abelloni/rtc-next]
on v5.11-rc2 next-20210104]
to the wrong git tree, kindly drop us a note.
we suggest to use '--base' as documented in
/git-format-patch]">https://git-scm.com/docs/git-format-patch]
om/0day-ci/linux/commits/Bartosz-Golaszewski/rtc-s5m-use-devm_i2c_new_dummy_device/20210105-214736">https://github.com/0day-ci/linux/commits/Bartosz-Golaszewski/rtc-s5m-use-devm_i2c_new_dummy_device/20210105-214736
el.org/pub/scm/linux/kernel/git/abelloni/linux.git">https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git rtc-next
(attached as .config)
href="https://github.com/llvm/llvm-project">https://github.com/llvm/llvm-project 5c951623bc8965fa1e89660f2f5f4a2944e4981a)
.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross">https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
cross compiling tool for clang build
binutils-x86-64-linux-gnu
.com/0day-ci/linux/commit/21651184178d1001f3bbc858c9161f1b7fd65321">https://github.com/0day-ci/linux/commit/21651184178d1001f3bbc858c9161f1b7fd65321
href="https://github.com/0day-ci/linux">https://github.com/0day-ci/linux
linux-review Bartosz-Golaszewski/rtc-s5m-use-devm_i2c_new_dummy_device/20210105-214736
001f3bbc858c9161f1b7fd65321
.config to linux build tree
COMPILER=clang make.cross ARCH=x86_64
add following tag as appropriate
robot <[email protected]>
by >>):
warning: variable 'ret' is uninitialized when used here [-Wuninitialized]
note: expanded from macro 'dev_err'
dev_fmt(fmt), ##__VA_ARGS__)
^~~~~~~~~~~
note: initialize the variable 'ret' to silence this warning
/> 2013-11-12 712
2013-11-12 713 static int s5m_rtc_probe(struct platform_device *pdev)
2013-11-12 714 {
2013-11-12 715 struct sec_pmic_dev *s5m87xx = dev_get_drvdata(pdev->dev.parent);
2013-11-12 716 struct sec_platform_data *pdata = s5m87xx->pdata;
2013-11-12 717 struct s5m_rtc_info *info;
2014-04-14 718 const struct regmap_config *regmap_cfg;
2014-06-10 719 int ret, alarm_irq;
2013-11-12 720
2013-11-12 721 if (!pdata) {
2013-11-12 722 dev_err(pdev->dev.parent, "Platform data not supplied\n");
2013-11-12 723 return -ENODEV;
2013-11-12 724 }
2013-11-12 725
2013-11-12 726 info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
2013-11-12 727 if (!info)
2013-11-12 728 return -ENOMEM;
2013-11-12 729
2015-04-16 730 switch (platform_get_device_id(pdev)->driver_data) {
2015-11-20 731 case S2MPS15X:
2015-12-30 732 regmap_cfg = &s2mps14_rtc_regmap_config;
2015-12-30 733 info->regs = &s2mps15_rtc_regs;
2015-12-30 734 alarm_irq = S2MPS14_IRQ_RTCA0;
2015-12-30 735 break;
2014-04-14 736 case S2MPS14X:
2015-12-30 737 regmap_cfg = &s2mps14_rtc_regmap_config;
2015-12-30 738 info->regs = &s2mps14_rtc_regs;
2015-12-30 739 alarm_irq = S2MPS14_IRQ_RTCA0;
2015-12-30 740 break;
2015-04-16 741 case S2MPS13X:
2014-04-14 742 regmap_cfg = &s2mps14_rtc_regmap_config;
2015-12-30 743 info->regs = &s2mps13_rtc_regs;
2014-06-10 744 alarm_irq = S2MPS14_IRQ_RTCA0;
2014-04-14 745 break;
2014-04-14 746 case S5M8763X:
2014-04-14 747 regmap_cfg = &s5m_rtc_regmap_config;
2014-06-10 748 info->regs = &s5m_rtc_regs;
2014-06-10 749 alarm_irq = S5M8763_IRQ_ALARM0;
2014-04-14 750 break;
2014-04-14 751 case S5M8767X:
2014-04-14 752 regmap_cfg = &s5m_rtc_regmap_config;
2014-06-10 753 info->regs = &s5m_rtc_regs;
2014-06-10 754 alarm_irq = S5M8767_IRQ_RTCA1;
2014-04-14 755 break;
2014-04-14 756 default:
2015-04-16 757 dev_err(&pdev->dev,
2015-04-16 758 "Device type %lu is not supported by RTC driver\n",
2015-04-16 759 platform_get_device_id(pdev)->driver_data);
2014-04-14 760 return -ENODEV;
2014-04-14 761 }
2014-04-14 762
2021-01-05 763 info->i2c = devm_i2c_new_dummy_device(&pdev->dev, s5m87xx->i2c->adapter,
2021-01-05 764 RTC_I2C_ADDR);
2019-07-22 765 if (IS_ERR(info->i2c)) {
2014-04-14 766 dev_err(&pdev->dev, "Failed to allocate I2C for RTC\n");
2019-07-22 767 return PTR_ERR(info->i2c);
2014-04-14 768 }
2014-04-14 769
2014-04-14 770 info->regmap = devm_regmap_init_i2c(info->i2c, regmap_cfg);
2014-04-14 771 if (IS_ERR(info->regmap)) {
2014-04-14 772 dev_err(&pdev->dev, "Failed to allocate RTC register map: %d\n",
2014-04-14 @773 ret);
2021-01-05 774 return PTR_ERR(info->regmap);
2014-04-14 775 }
2014-04-14 776
2013-11-12 777 info->dev = &pdev->dev;
2013-11-12 778 info->s5m87xx = s5m87xx;
2015-04-16 779 info->device_type = platform_get_device_id(pdev)->driver_data;
2013-11-12 780
Zolnierkiewicz 2014-08-29 781 if (s5m87xx->irq_data) {
2014-06-10 782 info->irq = regmap_irq_get_virq(s5m87xx->irq_data, alarm_irq);
2014-06-10 783 if (info->irq <= 0) {
2014-06-10 784 dev_err(&pdev->dev, "Failed to get virtual IRQ %d\n",
2014-06-10 785 alarm_irq);
2021-01-05 786 return -EINVAL;
2013-11-12 787 }
Zolnierkiewicz 2014-08-29 788 }
2013-11-12 789
2013-11-12 790 platform_set_drvdata(pdev, info);
2013-11-12 791
2013-11-12 792 ret = s5m8767_rtc_init_reg(info);
2013-11-12 793
2013-11-12 794 device_init_wakeup(&pdev->dev, 1);
2013-11-12 795
2013-11-12 796 info->rtc_dev = devm_rtc_device_register(&pdev->dev, "s5m-rtc",
2013-11-12 797 &s5m_rtc_ops, THIS_MODULE);
2013-11-12 798
2021-01-05 799 if (IS_ERR(info->rtc_dev))
2021-01-05 800 return PTR_ERR(info->rtc_dev);
2013-11-12 801
Zolnierkiewicz 2014-08-29 802 if (!info->irq) {
Zolnierkiewicz 2014-08-29 803 dev_info(&pdev->dev, "Alarm IRQ not available\n");
Zolnierkiewicz 2014-08-29 804 return 0;
Zolnierkiewicz 2014-08-29 805 }
Zolnierkiewicz 2014-08-29 806
2013-11-12 807 ret = devm_request_threaded_irq(&pdev->dev, info->irq, NULL,
2013-11-12 808 s5m_rtc_alarm_irq, 0, "rtc-alarm0",
2013-11-12 809 info);
2014-04-14 810 if (ret < 0) {
2013-11-12 811 dev_err(&pdev->dev, "Failed to request alarm IRQ: %d: %d\n",
2013-11-12 812 info->irq, ret);
2021-01-05 813 return ret;
2014-04-14 814 }
2014-04-14 815
2014-04-14 816 return 0;
2013-11-12 817 }
2013-11-12 818
Intel Corporation
erkitty/list/kbuild-all@lists.01.org">https://lists.01.org/hyperkitty/list/[email protected]

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2021-01-06 06:55:12

by Bartosz Golaszewski

[permalink] [raw]

Subject: Re: [PATCH] rtc: s5m: use devm_i2c_new_dummy_device()

On Wed, Jan 6, 2021 at 7:47 AM kernel test robot <[email protected]> wrote:
>
> Hi Bartosz,
>
> I love your patch! Perhaps something to improve:
>
> [auto build test WARNING on abelloni/rtc-next]
> [also build test WARNING on v5.11-rc2 next-20210104]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch]
>
> url: https://github.com/0day-ci/linux/commits/Bartosz-Golaszewski/rtc-s5m-use-devm_i2c_new_dummy_device/20210105-214736
> base: https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git rtc-next
> config: x86_64-randconfig-a004-20210105 (attached as .config)
> compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 5c951623bc8965fa1e89660f2f5f4a2944e4981a)
> reproduce (this is a W=1 build):
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # install x86_64 cross compiling tool for clang build
> # apt-get install binutils-x86-64-linux-gnu
> # https://github.com/0day-ci/linux/commit/21651184178d1001f3bbc858c9161f1b7fd65321
> git remote add linux-review https://github.com/0day-ci/linux
> git fetch --no-tags linux-review Bartosz-Golaszewski/rtc-s5m-use-devm_i2c_new_dummy_device/20210105-214736
> git checkout 21651184178d1001f3bbc858c9161f1b7fd65321
> # save the attached .config to linux build tree
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <[email protected]>
>
> All warnings (new ones prefixed by >>):
>
> >> drivers/rtc/rtc-s5m.c:773:4: warning: variable 'ret' is uninitialized when used here [-Wuninitialized]
> ret);
> ^~~
> include/linux/dev_printk.h:112:32: note: expanded from macro 'dev_err'
> _dev_err(dev, dev_fmt(fmt), ##__VA_ARGS__)
> ^~~~~~~~~~~
> drivers/rtc/rtc-s5m.c:719:9: note: initialize the variable 'ret' to silence this warning
> int ret, alarm_irq;
> ^
> = 0
> 1 warning generated.
>
>
> vim +/ret +773 drivers/rtc/rtc-s5m.c
>

This isn't caused by this patch, it seems to be an older bug. I can
try to fix it while at it.

Bart

2021-01-06 07:03:17

by Bartosz Golaszewski

[permalink] [raw]

Subject: Re: [PATCH] rtc: s5m: use devm_i2c_new_dummy_device()

On Wed, Jan 6, 2021 at 7:52 AM Bartosz Golaszewski
<[email protected]> wrote:
>
> On Wed, Jan 6, 2021 at 7:47 AM kernel test robot <[email protected]> wrote:
> >
> > Hi Bartosz,
> >
> > I love your patch! Perhaps something to improve:
> >
> > [auto build test WARNING on abelloni/rtc-next]
> > [also build test WARNING on v5.11-rc2 next-20210104]
> > [If your patch is applied to the wrong git tree, kindly drop us a note.
> > And when submitting patch, we suggest to use '--base' as documented in
> > https://git-scm.com/docs/git-format-patch]
> >
> > url: https://github.com/0day-ci/linux/commits/Bartosz-Golaszewski/rtc-s5m-use-devm_i2c_new_dummy_device/20210105-214736
> > base: https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git rtc-next
> > config: x86_64-randconfig-a004-20210105 (attached as .config)
> > compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 5c951623bc8965fa1e89660f2f5f4a2944e4981a)
> > reproduce (this is a W=1 build):
> > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> > chmod +x ~/bin/make.cross
> > # install x86_64 cross compiling tool for clang build
> > # apt-get install binutils-x86-64-linux-gnu
> > # https://github.com/0day-ci/linux/commit/21651184178d1001f3bbc858c9161f1b7fd65321
> > git remote add linux-review https://github.com/0day-ci/linux
> > git fetch --no-tags linux-review Bartosz-Golaszewski/rtc-s5m-use-devm_i2c_new_dummy_device/20210105-214736
> > git checkout 21651184178d1001f3bbc858c9161f1b7fd65321
> > # save the attached .config to linux build tree
> > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
> >
> > If you fix the issue, kindly add following tag as appropriate
> > Reported-by: kernel test robot <[email protected]>
> >
> > All warnings (new ones prefixed by >>):
> >
> > >> drivers/rtc/rtc-s5m.c:773:4: warning: variable 'ret' is uninitialized when used here [-Wuninitialized]
> > ret);
> > ^~~
> > include/linux/dev_printk.h:112:32: note: expanded from macro 'dev_err'
> > _dev_err(dev, dev_fmt(fmt), ##__VA_ARGS__)
> > ^~~~~~~~~~~
> > drivers/rtc/rtc-s5m.c:719:9: note: initialize the variable 'ret' to silence this warning
> > int ret, alarm_irq;
> > ^
> > = 0
> > 1 warning generated.
> >
> >
> > vim +/ret +773 drivers/rtc/rtc-s5m.c
> >
>
> This isn't caused by this patch, it seems to be an older bug. I can
> try to fix it while at it.
>
> Bart

-ETOOEARLY actually it's my bad, I'll fix that in v3.

Bartosz