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iio: adc: meson_saradc: 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 <caihuoqing@baidu.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> #Meson8b Odroid-C1
Link: https://lore.kernel.org/r/20211008092858.495-6-caihuoqing@baidu.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Cai Huoqing 2021-10-08 17:28:54 +08:00 committed by Jonathan Cameron
parent 070a83ff63
commit a5999024b5
1 changed files with 17 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
drivers/iio/adc/meson_saradc.c
View File

@ -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: */
@ -1269,10 +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;