linux-kernel - [PATCH v3 05/18] iio: adc: ltc2497: Simplify with dev_err

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Date:   Sat, 29 Aug 2020 08:47:13 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Peter Rosin <peda@...ntia.se>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Tomasz Duszynski <tomasz.duszynski@...akon.com>,
        linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org,
        linux-amlogic@...ts.infradead.org,
        linux-stm32@...md-mailman.stormreply.com
Cc:     Andy Shevchenko <andy.shevchenko@...il.com>,
        Krzysztof Kozlowski <krzk@...nel.org>
Subject: [PATCH v3 05/18] 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@...nel.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>

---

Changes since v2:
1. Wrap dev_err_probe() lines at 80 character

Changes since v1:
1. Wrap dev_err_probe() lines at 100 character
---
 drivers/iio/adc/ltc2497-core.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/iio/adc/ltc2497-core.c b/drivers/iio/adc/ltc2497-core.c
index 9b8fd9c32364..2a485c8a1940 100644
--- 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) {
-- 
2.17.1