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iio: dac: ltc1660: Make use of the helper function dev_err_probe()

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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: Marcus Folkesson <marcus.folkesson@gmail.com>
Link: https://lore.kernel.org/r/20210928013902.1341-3-caihuoqing@baidu.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Cai Huoqing authored and Jonathan Cameron committed 2021-10-19 08:30:43 +01:00
1 parent 7cf5307c00
commit 7bb9df2d58
1 file changed
+3 -4
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drivers/iio/dac/ltc1660.c
+3 -4
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@@ -172,10 +172,9 @@ static int ltc1660_probe(struct spi_device *spi)
}
priv->vref_reg = devm_regulator_get(&spi->dev, "vref");
if (IS_ERR(priv->vref_reg)) {
dev_err(&spi->dev, "vref regulator not specified\n");
return PTR_ERR(priv->vref_reg);
}
if (IS_ERR(priv->vref_reg))
return dev_err_probe(&spi->dev, PTR_ERR(priv->vref_reg),
"vref regulator not specified\n");
ret = regulator_enable(priv->vref_reg);
if (ret) {