diff mbox series

[v3,2/9] iio: adc: imx7d_adc: Make use of the helper function dev_err_probe()

Message ID 20210928141956.2148-2-caihuoqing@baidu.com (mailing list archive)
State Superseded
Headers show
Series [v3,1/9] iio: adc: ab8500-gpadc: Make use of the helper function dev_err_probe() | expand

Commit Message

Cai,Huoqing Sept. 28, 2021, 2:19 p.m. UTC
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 <caihuoqing@baidu.com>
---
 drivers/iio/adc/imx7d_adc.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

Comments

Jonathan Cameron Sept. 29, 2021, 4:26 p.m. UTC | #1
On Tue, 28 Sep 2021 22:19:48 +0800
Cai Huoqing <caihuoqing@baidu.com> 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 <caihuoqing@baidu.com>
Hi Cai,

It is currently not printing a message, but should we handle the same
for platform_get_irq?

One other minor comment inline.  Actual change here is fine.

Thanks,

Jonathan

> ---
>  drivers/iio/adc/imx7d_adc.c | 16 +++++-----------
>  1 file changed, 5 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/iio/adc/imx7d_adc.c b/drivers/iio/adc/imx7d_adc.c
> index 4969a5f941e3..f47360cbff3b 100644
> --- a/drivers/iio/adc/imx7d_adc.c
> +++ b/drivers/iio/adc/imx7d_adc.c
> @@ -496,19 +496,13 @@ static int imx7d_adc_probe(struct platform_device *pdev)
>  		return irq;
>  
>  	info->clk = devm_clk_get(dev, "adc");
> -	if (IS_ERR(info->clk)) {
> -		ret = PTR_ERR(info->clk);
> -		dev_err(dev, "Failed getting clock, err = %d\n", ret);
> -		return ret;
> -	}
> +	if (IS_ERR(info->clk))
> +		return dev_err_probe(dev, PTR_ERR(info->clk), "Failed getting clock\n");

Where it doesn't hurt readabilty preferred to keep below 80 chars.

>  
>  	info->vref = devm_regulator_get(dev, "vref");
> -	if (IS_ERR(info->vref)) {
> -		ret = PTR_ERR(info->vref);
> -		dev_err(dev,
> -			"Failed getting reference voltage, err = %d\n", ret);
> -		return ret;
> -	}
> +	if (IS_ERR(info->vref))
> +		return dev_err_probe(dev, PTR_ERR(info->vref),
> +				     "Failed getting reference voltage\n");
>  
>  	platform_set_drvdata(pdev, indio_dev);
>
diff mbox series

Patch

diff --git a/drivers/iio/adc/imx7d_adc.c b/drivers/iio/adc/imx7d_adc.c
index 4969a5f941e3..f47360cbff3b 100644
--- a/drivers/iio/adc/imx7d_adc.c
+++ b/drivers/iio/adc/imx7d_adc.c
@@ -496,19 +496,13 @@  static int imx7d_adc_probe(struct platform_device *pdev)
 		return irq;
 
 	info->clk = devm_clk_get(dev, "adc");
-	if (IS_ERR(info->clk)) {
-		ret = PTR_ERR(info->clk);
-		dev_err(dev, "Failed getting clock, err = %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(info->clk))
+		return dev_err_probe(dev, PTR_ERR(info->clk), "Failed getting clock\n");
 
 	info->vref = devm_regulator_get(dev, "vref");
-	if (IS_ERR(info->vref)) {
-		ret = PTR_ERR(info->vref);
-		dev_err(dev,
-			"Failed getting reference voltage, err = %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(info->vref))
+		return dev_err_probe(dev, PTR_ERR(info->vref),
+				     "Failed getting reference voltage\n");
 
 	platform_set_drvdata(pdev, indio_dev);