linux-kernel - [PATCH 04/10] iio: adc: hx711: use dev_err

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Date: Fri, 21 Jun 2024 17:11:51 -0500
From: David Lechner <dlechner@...libre.com>
To: Jonathan Cameron <jic23@...nel.org>
Cc: David Lechner <dlechner@...libre.com>,
	Joel Stanley <joel@....id.au>,
	Andrew Jeffery <andrew@...econstruct.com.au>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Andreas Klinger <ak@...klinger.de>,
	Michael Hennerich <Michael.Hennerich@...log.com>,
	Nuno Sá <nuno.sa@...log.com>,
	linux-iio@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-aspeed@...ts.ozlabs.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 04/10] iio: adc: hx711: use dev_err_probe()

Use dev_err_probe() to simplify error returns in the probe function.

Signed-off-by: David Lechner <dlechner@...libre.com>
---
 drivers/iio/adc/hx711.c | 35 +++++++++++++----------------------
 1 file changed, 13 insertions(+), 22 deletions(-)

diff --git a/drivers/iio/adc/hx711.c b/drivers/iio/adc/hx711.c
index 8461b1fe6bad..b3372ccff7d5 100644
--- a/drivers/iio/adc/hx711.c
+++ b/drivers/iio/adc/hx711.c
@@ -464,10 +464,8 @@ static int hx711_probe(struct platform_device *pdev)
 	int i;
 
 	indio_dev = devm_iio_device_alloc(dev, sizeof(struct hx711_data));
-	if (!indio_dev) {
-		dev_err(dev, "failed to allocate IIO device\n");
-		return -ENOMEM;
-	}
+	if (!indio_dev)
+		return dev_err_probe(dev, -ENOMEM, "failed to allocate IIO device\n");
 
 	hx711_data = iio_priv(indio_dev);
 	hx711_data->dev = dev;
@@ -479,22 +477,18 @@ static int hx711_probe(struct platform_device *pdev)
 	 * in the driver it is an output
 	 */
 	hx711_data->gpiod_pd_sck = devm_gpiod_get(dev, "sck", GPIOD_OUT_LOW);
-	if (IS_ERR(hx711_data->gpiod_pd_sck)) {
-		dev_err(dev, "failed to get sck-gpiod: err=%ld\n",
-					PTR_ERR(hx711_data->gpiod_pd_sck));
-		return PTR_ERR(hx711_data->gpiod_pd_sck);
-	}
+	if (IS_ERR(hx711_data->gpiod_pd_sck))
+		return dev_err_probe(dev, PTR_ERR(hx711_data->gpiod_pd_sck),
+				     "failed to get sck-gpiod\n");
 
 	/*
 	 * DOUT stands for serial data output of HX711
 	 * for the driver it is an input
 	 */
 	hx711_data->gpiod_dout = devm_gpiod_get(dev, "dout", GPIOD_IN);
-	if (IS_ERR(hx711_data->gpiod_dout)) {
-		dev_err(dev, "failed to get dout-gpiod: err=%ld\n",
-					PTR_ERR(hx711_data->gpiod_dout));
-		return PTR_ERR(hx711_data->gpiod_dout);
-	}
+	if (IS_ERR(hx711_data->gpiod_dout))
+		return dev_err_probe(dev, PTR_ERR(hx711_data->gpiod_dout),
+				     "failed to get dout-gpiod\n");
 
 	ret = devm_regulator_get_enable_read_voltage(dev, "avdd");
 	if (ret < 0)
@@ -548,16 +542,13 @@ static int hx711_probe(struct platform_device *pdev)
 	ret = devm_iio_triggered_buffer_setup(dev, indio_dev,
 					      iio_pollfunc_store_time,
 					      hx711_trigger, NULL);
-	if (ret < 0) {
-		dev_err(dev, "setup of iio triggered buffer failed\n");
-		return ret;
-	}
+	if (ret < 0)
+		return dev_err_probe(dev, ret,
+				     "setup of iio triggered buffer failed\n");
 
 	ret = devm_iio_device_register(dev, indio_dev);
-	if (ret < 0) {
-		dev_err(dev, "Couldn't register the device\n");
-		return ret;
-	}
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "Couldn't register the device\n");
 
 	return 0;
 }

-- 
2.45.2