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From:   Krzysztof Kozlowski <krzk@kernel.org>
To:     Jonathan Cameron <jic23@kernel.org>,
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Subject: [PATCH 12/16] iio: dac: dpot-dac: Simplify with dev_err_probe()
Date:   Wed, 26 Aug 2020 16:51:49 +0200
Message-Id: <20200826145153.10444-12-krzk@kernel.org>
In-Reply-To: <20200826145153.10444-1-krzk@kernel.org>
References: <20200826145153.10444-1-krzk@kernel.org>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

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>
---
 drivers/iio/dac/dpot-dac.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/iio/dac/dpot-dac.c b/drivers/iio/dac/dpot-dac.c
index be61c3b01e8b..2258535b8a42 100644
--- a/drivers/iio/dac/dpot-dac.c
+++ b/drivers/iio/dac/dpot-dac.c
@@ -183,18 +183,14 @@ static int dpot_dac_probe(struct platform_device *pdev)
 	indio_dev->num_channels = 1;
 
 	dac->vref = devm_regulator_get(dev, "vref");
-	if (IS_ERR(dac->vref)) {
-		if (PTR_ERR(dac->vref) != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "failed to get vref regulator\n");
-		return PTR_ERR(dac->vref);
-	}
+	if (IS_ERR(dac->vref))
+		return dev_err_probe(&pdev->dev, PTR_ERR(dac->vref),
+				     "failed to get vref regulator\n");
 
 	dac->dpot = devm_iio_channel_get(dev, "dpot");
-	if (IS_ERR(dac->dpot)) {
-		if (PTR_ERR(dac->dpot) != -EPROBE_DEFER)
-			dev_err(dev, "failed to get dpot input channel\n");
-		return PTR_ERR(dac->dpot);
-	}
+	if (IS_ERR(dac->dpot))
+		return dev_err_probe(&pdev->dev, PTR_ERR(dac->dpot),
+				     "failed to get dpot input channel\n");
 
 	ret = iio_get_channel_type(dac->dpot, &type);
 	if (ret < 0)
-- 
2.17.1