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From:   Cai Huoqing <caihuoqing@baidu.com>
To:     <caihuoqing@baidu.com>
CC:     Linus Walleij <linus.walleij@linaro.org>,
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Subject: [PATCH v3 1/9] iio: adc: ab8500-gpadc: Make use of the helper function dev_err_probe()
Date:   Tue, 28 Sep 2021 22:19:47 +0800
Message-ID: <20210928141956.2148-1-caihuoqing@baidu.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

When possible use dev_err_probe help to properly deal with the
PROBE_DEFER error, the benefit is that DEFER issue will be logged
in the devices_deferred debugfs file.
Using dev_err_probe() can reduce code size, and the error value
gets printed.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
---
v1->v2: Remove the separate line of PTR_ERR().

 drivers/iio/adc/ab8500-gpadc.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/iio/adc/ab8500-gpadc.c b/drivers/iio/adc/ab8500-gpadc.c
index 7b5212ba5501..c58d0e2ae538 100644
--- a/drivers/iio/adc/ab8500-gpadc.c
+++ b/drivers/iio/adc/ab8500-gpadc.c
@@ -1146,11 +1146,9 @@ static int ab8500_gpadc_probe(struct platform_device *pdev)
 
 	/* The VTVout LDO used to power the AB8500 GPADC */
 	gpadc->vddadc = devm_regulator_get(dev, "vddadc");
-	if (IS_ERR(gpadc->vddadc)) {
-		ret = PTR_ERR(gpadc->vddadc);
-		dev_err(dev, "failed to get vddadc\n");
-		return ret;
-	}
+	if (IS_ERR(gpadc->vddadc))
+		return dev_err_probe(dev, PTR_ERR(gpadc->vddadc),
+				     "failed to get vddadc\n");
 
 	ret = regulator_enable(gpadc->vddadc);
 	if (ret) {
-- 
2.25.1