iio: adc: ltc2497: Simplify with dev_err_probe()

Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and also it prints the error value.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20200829064726.26268-5-krzk@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/ltc2497-core.c b/drivers/iio/adc/ltc2497-core.c
index 9b8fd9c..2a485c8 100644 (file)
--- a/drivers/iio/adc/ltc2497-core.c
+++ b/drivers/iio/adc/ltc2497-core.c
@@ -180,13 +180,9 @@ int ltc2497core_probe(struct device *dev, struct iio_dev *indio_dev)
                return ret;
 
        ddata->ref = devm_regulator_get(dev, "vref");
-       if (IS_ERR(ddata->ref)) {
-               if (PTR_ERR(ddata->ref) != -EPROBE_DEFER)
-                       dev_err(dev, "Failed to get vref regulator: %pe\n",
-                               ddata->ref);
-
-               return PTR_ERR(ddata->ref);
-       }
+       if (IS_ERR(ddata->ref))
+               return dev_err_probe(dev, PTR_ERR(ddata->ref),
+                                    "Failed to get vref regulator\n");
 
        ret = regulator_enable(ddata->ref);
        if (ret < 0) {