linux-kernel - [PATCH 2/2] iio: health: afe4404: Make use of the helper function dev_err

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20210927083639.1020-2-caihuoqing@baidu.com>
Date:   Mon, 27 Sep 2021 16:36:38 +0800
From:   Cai Huoqing <caihuoqing@...du.com>
To:     <caihuoqing@...du.com>
CC:     Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        <linux-iio@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 2/2] iio: health: afe4404: Make use of the helper function dev_err_probe()

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@...du.com>
---
 drivers/iio/health/afe4404.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/health/afe4404.c b/drivers/iio/health/afe4404.c
index d8a27dfe074a..d58df52cca37 100644
--- a/drivers/iio/health/afe4404.c
+++ b/drivers/iio/health/afe4404.c
@@ -494,10 +494,11 @@ static int afe4404_probe(struct i2c_client *client,
 	}
 
 	afe->regulator = devm_regulator_get(afe->dev, "tx_sup");
-	if (IS_ERR(afe->regulator)) {
-		dev_err(afe->dev, "Unable to get regulator\n");
-		return PTR_ERR(afe->regulator);
-	}
+	if (IS_ERR(afe->regulator))
+		return dev_err_probe(afe->dev,
+				     PTR_ERR(afe->regulator),
+				     "Unable to get regulator\n");
+
 	ret = regulator_enable(afe->regulator);
 	if (ret) {
 		dev_err(afe->dev, "Unable to enable regulator\n");
-- 
2.25.1