Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Cai Huoqing <caihuoqing@baidu.com>
To:     <caihuoqing@baidu.com>
CC:     Lars-Peter Clausen <lars@metafoo.de>,
        Michael Hennerich <Michael.Hennerich@analog.com>,
        Jonathan Cameron <jic23@kernel.org>,
        "Vladimir Zapolskiy" <vz@mleia.com>,
        Marcus Folkesson <marcus.folkesson@gmail.com>,
        Maxime Coquelin <mcoquelin.stm32@gmail.com>,
        Alexandre Torgue <alexandre.torgue@foss.st.com>,
        <linux-iio@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-stm32@st-md-mailman.stormreply.com>
Subject: [PATCH v2 5/8] iio: dac: max5821: Make use of the helper function dev_err_probe()
Date:   Tue, 28 Sep 2021 09:38:58 +0800
Message-ID: <20210928013902.1341-5-caihuoqing@baidu.com>
In-Reply-To: <20210928013902.1341-1-caihuoqing@baidu.com>
References: <20210928013902.1341-1-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.

Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
---
 drivers/iio/dac/max5821.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/iio/dac/max5821.c b/drivers/iio/dac/max5821.c
index bd0b7f361154..7da4710a6408 100644
--- a/drivers/iio/dac/max5821.c
+++ b/drivers/iio/dac/max5821.c
@@ -321,12 +321,9 @@ static int max5821_probe(struct i2c_client *client,
 	}
 
 	data->vref_reg = devm_regulator_get(&client->dev, "vref");
-	if (IS_ERR(data->vref_reg)) {
-		ret = PTR_ERR(data->vref_reg);
-		dev_err(&client->dev,
-			"Failed to get vref regulator: %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(data->vref_reg))
+		return dev_err_probe(&client->dev, PTR_ERR(data->vref_reg),
+				     "Failed to get vref regulator\n");
 
 	ret = regulator_enable(data->vref_reg);
 	if (ret) {
-- 
2.25.1