linux-kernel - [PATCH v3 04/18] iio: adc: exynos_adc: Simplify with dev_err

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Date:   Sat, 29 Aug 2020 08:47:12 +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 04/18] iio: adc: exynos_adc: 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/exynos_adc.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c
index 7d23b6c33284..20477b249f2a 100644
--- a/drivers/iio/adc/exynos_adc.c
+++ b/drivers/iio/adc/exynos_adc.c
@@ -844,13 +844,9 @@ static int exynos_adc_probe(struct platform_device *pdev)
 	}
 
 	info->vdd = devm_regulator_get(&pdev->dev, "vdd");
-	if (IS_ERR(info->vdd)) {
-		if (PTR_ERR(info->vdd) != -EPROBE_DEFER)
-			dev_err(&pdev->dev,
-				"failed getting regulator, err = %ld\n",
-				PTR_ERR(info->vdd));
-		return PTR_ERR(info->vdd);
-	}
+	if (IS_ERR(info->vdd))
+		return dev_err_probe(&pdev->dev, PTR_ERR(info->vdd),
+				     "failed getting regulator");
 
 	ret = regulator_enable(info->vdd);
 	if (ret)
-- 
2.17.1