2020-01-13 13:21:00

by Fabrice Gasnier

Subject: [PATCH] iio: adc: stm32-adc: don't print an error on probe deferral

From: Etienne Carriere <[email protected]>

Do not print an error trace when deferring probe for some resource.

Signed-off-by: Etienne Carriere <[email protected]>
Signed-off-by: Fabrice Gasnier <[email protected]>
---
drivers/iio/adc/stm32-adc-core.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/adc/stm32-adc-core.c b/drivers/iio/adc/stm32-adc-core.c
index 97655d7..2df88d2 100644
--- a/drivers/iio/adc/stm32-adc-core.c
+++ b/drivers/iio/adc/stm32-adc-core.c
@@ -688,7 +688,8 @@ static int stm32_adc_probe(struct platform_device *pdev)
priv->vref = devm_regulator_get(&pdev->dev, "vref");
if (IS_ERR(priv->vref)) {
ret = PTR_ERR(priv->vref);
- dev_err(&pdev->dev, "vref get failed, %d\n", ret);
+ if (ret != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "vref get failed, %d\n", ret);
return ret;
}

@@ -696,7 +697,8 @@ static int stm32_adc_probe(struct platform_device *pdev)
if (IS_ERR(priv->aclk)) {
ret = PTR_ERR(priv->aclk);
if (ret != -ENOENT) {
- dev_err(&pdev->dev, "Can't get 'adc' clock\n");
+ if (ret != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "Can't get 'adc' clock\n");
return ret;
}
priv->aclk = NULL;
@@ -706,7 +708,8 @@ static int stm32_adc_probe(struct platform_device *pdev)
if (IS_ERR(priv->bclk)) {
ret = PTR_ERR(priv->bclk);
if (ret != -ENOENT) {
- dev_err(&pdev->dev, "Can't get 'bus' clock\n");
+ if (ret != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "Can't get 'bus' clock\n");
return ret;
}
priv->bclk = NULL;
--
2.7.4

2020-01-18 14:23:36

by Jonathan Cameron

Subject: Re: [PATCH] iio: adc: stm32-adc: don't print an error on probe deferral

On Mon, 13 Jan 2020 14:18:59 +0100
Fabrice Gasnier <[email protected]> wrote:

> From: Etienne Carriere <[email protected]>
>
> Do not print an error trace when deferring probe for some resource.
>
> Signed-off-by: Etienne Carriere <[email protected]>
> Signed-off-by: Fabrice Gasnier <[email protected]>
Applied.

Thanks,

Jonathan

> ---
> drivers/iio/adc/stm32-adc-core.c | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/iio/adc/stm32-adc-core.c b/drivers/iio/adc/stm32-adc-core.c
> index 97655d7..2df88d2 100644
> --- a/drivers/iio/adc/stm32-adc-core.c
> +++ b/drivers/iio/adc/stm32-adc-core.c
> @@ -688,7 +688,8 @@ static int stm32_adc_probe(struct platform_device *pdev)
> priv->vref = devm_regulator_get(&pdev->dev, "vref");
> if (IS_ERR(priv->vref)) {
> ret = PTR_ERR(priv->vref);
> - dev_err(&pdev->dev, "vref get failed, %d\n", ret);
> + if (ret != -EPROBE_DEFER)
> + dev_err(&pdev->dev, "vref get failed, %d\n", ret);
> return ret;
> }
>
> @@ -696,7 +697,8 @@ static int stm32_adc_probe(struct platform_device *pdev)
> if (IS_ERR(priv->aclk)) {
> ret = PTR_ERR(priv->aclk);
> if (ret != -ENOENT) {
> - dev_err(&pdev->dev, "Can't get 'adc' clock\n");
> + if (ret != -EPROBE_DEFER)
> + dev_err(&pdev->dev, "Can't get 'adc' clock\n");
> return ret;
> }
> priv->aclk = NULL;
> @@ -706,7 +708,8 @@ static int stm32_adc_probe(struct platform_device *pdev)
> if (IS_ERR(priv->bclk)) {
> ret = PTR_ERR(priv->bclk);
> if (ret != -ENOENT) {
> - dev_err(&pdev->dev, "Can't get 'bus' clock\n");
> + if (ret != -EPROBE_DEFER)
> + dev_err(&pdev->dev, "Can't get 'bus' clock\n");
> return ret;
> }
> priv->bclk = NULL;