| Message ID | 20210928141956.2148-6-caihuoqing@baidu.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v3,1/9] iio: adc: ab8500-gpadc: Make use of the helper function dev_err_probe() | expand |
On Tue, Sep 28, 2021 at 4:20 PM 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> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> as well as: Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> # Odroid-C1 Thanks for your contribution! Best regards, Martin
On Sat, 2 Oct 2021 15:01:56 +0200 Martin Blumenstingl <martin.blumenstingl@googlemail.com> wrote: > On Tue, Sep 28, 2021 at 4:20 PM 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> > Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> > as well as: > Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> > # Odroid-C1 Hi Martin, Confusing tag. Was the second meant to be a Tested-by? Thanks, Jonathan > > Thanks for your contribution! > > > Best regards, > Martin
Hi Jonathan, On Sat, Oct 2, 2021 at 6:05 PM Jonathan Cameron <jic23@kernel.org> wrote: > > On Sat, 2 Oct 2021 15:01:56 +0200 > Martin Blumenstingl <martin.blumenstingl@googlemail.com> wrote: > > > On Tue, Sep 28, 2021 at 4:20 PM 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> > > Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> > > as well as: > > Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> > > # Odroid-C1 > Hi Martin, > > Confusing tag. Was the second meant to be a Tested-by? my bad - it is indeed supposed to be: Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Testing was done on a Meson8b Odroid-C1 board. Best regards, Martin
diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c index 705d5e11a54b..014a77f98b98 100644 --- a/drivers/iio/adc/meson_saradc.c +++ b/drivers/iio/adc/meson_saradc.c @@ -1230,35 +1230,31 @@ static int meson_sar_adc_probe(struct platform_device *pdev) return ret; priv->clkin = devm_clk_get(&pdev->dev, "clkin"); - if (IS_ERR(priv->clkin)) { - dev_err(&pdev->dev, "failed to get clkin\n"); - return PTR_ERR(priv->clkin); - } + if (IS_ERR(priv->clkin)) + return dev_err_probe(&pdev->dev, PTR_ERR(priv->clkin), + "failed to get clkin\n"); priv->core_clk = devm_clk_get(&pdev->dev, "core"); - if (IS_ERR(priv->core_clk)) { - dev_err(&pdev->dev, "failed to get core clk\n"); - return PTR_ERR(priv->core_clk); - } + if (IS_ERR(priv->core_clk)) + return dev_err_probe(&pdev->dev, PTR_ERR(priv->core_clk), + "failed to get core clk\n"); priv->adc_clk = devm_clk_get(&pdev->dev, "adc_clk"); if (IS_ERR(priv->adc_clk)) { - if (PTR_ERR(priv->adc_clk) == -ENOENT) { + if (PTR_ERR(priv->adc_clk) == -ENOENT) priv->adc_clk = NULL; - } else { - dev_err(&pdev->dev, "failed to get adc clk\n"); - return PTR_ERR(priv->adc_clk); - } + else + return dev_err_probe(&pdev->dev, PTR_ERR(priv->adc_clk), + "failed to get adc clk\n"); } priv->adc_sel_clk = devm_clk_get(&pdev->dev, "adc_sel"); if (IS_ERR(priv->adc_sel_clk)) { - if (PTR_ERR(priv->adc_sel_clk) == -ENOENT) { + if (PTR_ERR(priv->adc_sel_clk) == -ENOENT) priv->adc_sel_clk = NULL; - } else { - dev_err(&pdev->dev, "failed to get adc_sel clk\n"); - return PTR_ERR(priv->adc_sel_clk); - } + else + return dev_err_probe(&pdev->dev, PTR_ERR(priv->adc_sel_clk), + "failed to get adc_sel clk\n"); } /* on pre-GXBB SoCs the SAR ADC itself provides the ADC clock: */ @@ -1265,10 +1265,9 @@ static int meson_sar_adc_probe(struct platform_device *pdev) } priv->vref = devm_regulator_get(&pdev->dev, "vref"); - if (IS_ERR(priv->vref)) { - dev_err(&pdev->dev, "failed to get vref regulator\n"); - return PTR_ERR(priv->vref); - } + if (IS_ERR(priv->vref)) + return dev_err_probe(&pdev->dev, PTR_ERR(priv->vref), + "failed to get vref regulator\n"); priv->calibscale = MILLION;
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> --- v1->v2: Remove the separate line of PTR_ERR(). drivers/iio/adc/meson_saradc.c | 39 +++++++++++++----------------- 1 file changed, 17 insertions(+), 22 deletions(-)