2021-09-28 01:45:59

by Cai,Huoqing

Subject: [PATCH v2 1/2] iio: health: afe4403: Make use of the helper function dev_err_probe()

When possible use dev_err_probe help to properly deal with the
PROBE_DEFER error, the benefit is that DEFER issue will be logged
in the devices_deferred debugfs file.
Using dev_err_probe() can reduce code size, and the error value
gets printed.

Signed-off-by: Cai Huoqing <[email protected]>
---
v1->v2: Remove the separate line of PTR_ERR().

drivers/iio/health/afe4403.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/health/afe4403.c b/drivers/iio/health/afe4403.c
index d4921385aaf7..3a8cfb669b25 100644
--- a/drivers/iio/health/afe4403.c
+++ b/drivers/iio/health/afe4403.c
@@ -487,10 +487,10 @@ static int afe4403_probe(struct spi_device *spi)
}

afe->regulator = devm_regulator_get(afe->dev, "tx_sup");
- if (IS_ERR(afe->regulator)) {
- dev_err(afe->dev, "Unable to get regulator\n");
- return PTR_ERR(afe->regulator);
- }
+ if (IS_ERR(afe->regulator))
+ return dev_err_probe(afe->dev, PTR_ERR(afe->regulator),
+ "Unable to get regulator\n");
+
ret = regulator_enable(afe->regulator);
if (ret) {
dev_err(afe->dev, "Unable to enable regulator\n");
--
2.25.1

2021-09-28 01:46:29

by Cai,Huoqing

Subject: [PATCH v2 2/2] iio: health: afe4404: Make use of the helper function dev_err_probe()

When possible use dev_err_probe help to properly deal with the
PROBE_DEFER error, the benefit is that DEFER issue will be logged
in the devices_deferred debugfs file.
Using dev_err_probe() can reduce code size, and the error value
gets printed.

Signed-off-by: Cai Huoqing <[email protected]>
---
v1->v2: Remove the separate line of PTR_ERR().

drivers/iio/health/afe4404.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/health/afe4404.c b/drivers/iio/health/afe4404.c
index d8a27dfe074a..d58df52cca37 100644
--- a/drivers/iio/health/afe4404.c
+++ b/drivers/iio/health/afe4404.c
@@ -494,10 +494,10 @@ static int afe4404_probe(struct i2c_client *client,
}

afe->regulator = devm_regulator_get(afe->dev, "tx_sup");
- if (IS_ERR(afe->regulator)) {
- dev_err(afe->dev, "Unable to get regulator\n");
- return PTR_ERR(afe->regulator);
- }
+ if (IS_ERR(afe->regulator))
+ return dev_err_probe(afe->dev, PTR_ERR(afe->regulator),
+ "Unable to get regulator\n");
+
ret = regulator_enable(afe->regulator);
if (ret) {
dev_err(afe->dev, "Unable to enable regulator\n");
--
2.25.1

2021-10-07 19:44:12

by Jonathan Cameron

Subject: Re: [PATCH v2 1/2] iio: health: afe4403: Make use of the helper function dev_err_probe()

On Tue, 28 Sep 2021 09:44:01 +0800
Cai Huoqing <[email protected]> wrote:

> When possible use dev_err_probe help to properly deal with the
> PROBE_DEFER error, the benefit is that DEFER issue will be logged
> in the devices_deferred debugfs file.
> Using dev_err_probe() can reduce code size, and the error value
> gets printed.
>
> Signed-off-by: Cai Huoqing <[email protected]>
Series applied and pushed out as testing for 0-day to see if it can
find anything we missed.

Thanks,

Jonathan

> ---
> v1->v2: Remove the separate line of PTR_ERR().
>
> drivers/iio/health/afe4403.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/iio/health/afe4403.c b/drivers/iio/health/afe4403.c
> index d4921385aaf7..3a8cfb669b25 100644
> --- a/drivers/iio/health/afe4403.c
> +++ b/drivers/iio/health/afe4403.c
> @@ -487,10 +487,10 @@ static int afe4403_probe(struct spi_device *spi)
> }
>
> afe->regulator = devm_regulator_get(afe->dev, "tx_sup");
> - if (IS_ERR(afe->regulator)) {
> - dev_err(afe->dev, "Unable to get regulator\n");
> - return PTR_ERR(afe->regulator);
> - }
> + if (IS_ERR(afe->regulator))
> + return dev_err_probe(afe->dev, PTR_ERR(afe->regulator),
> + "Unable to get regulator\n");
> +
> ret = regulator_enable(afe->regulator);
> if (ret) {
> dev_err(afe->dev, "Unable to enable regulator\n");