linux-kernel - [PATCH 2/3] iio: light: isl29018: Use dev_err

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Date:   Tue, 11 Aug 2020 11:43:15 +0800
From:   Anson Huang <Anson.Huang@....com>
To:     jic23@...nel.org, knaack.h@....de, lars@...afoo.de,
        pmeerw@...erw.net, alexandru.ardelean@...log.com,
        hslester96@...il.com, linux-iio@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Linux-imx@....com
Subject: [PATCH 2/3] iio: light: isl29018: Use dev_err_probe() to simplify error handling

dev_err_probe() can reduce code size, uniform error handling and record the
defer probe reason etc., use it to simplify the code.

Signed-off-by: Anson Huang <Anson.Huang@....com>
---
 drivers/iio/light/isl29018.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/iio/light/isl29018.c b/drivers/iio/light/isl29018.c
index ac8ad0f..2689867 100644
--- a/drivers/iio/light/isl29018.c
+++ b/drivers/iio/light/isl29018.c
@@ -746,12 +746,9 @@ static int isl29018_probe(struct i2c_client *client,
 	chip->suspended = false;
 
 	chip->vcc_reg = devm_regulator_get(&client->dev, "vcc");
-	if (IS_ERR(chip->vcc_reg)) {
-		err = PTR_ERR(chip->vcc_reg);
-		if (err != -EPROBE_DEFER)
-			dev_err(&client->dev, "failed to get VCC regulator!\n");
-		return err;
-	}
+	if (IS_ERR(chip->vcc_reg))
+		return dev_err_probe(&client->dev, PTR_ERR(chip->vcc_reg),
+				     "failed to get VCC regulator!\n");
 
 	err = regulator_enable(chip->vcc_reg);
 	if (err) {
-- 
2.7.4