linux-kernel - [PATCH 2/4] leds: pwm: Simplify with 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] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200826145013.10230-2-krzk@kernel.org>
Date:   Wed, 26 Aug 2020 16:50:11 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Pavel Machek <pavel@....cz>, Dan Murphy <dmurphy@...com>,
        linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzk@...nel.org>
Subject: [PATCH 2/4] leds: pwm: Simplify with dev_err_probe()

Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and also it prints the error value.

Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
---
 drivers/leds/leds-pwm.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c
index ef7b91bd2064..e35a97c1d828 100644
--- a/drivers/leds/leds-pwm.c
+++ b/drivers/leds/leds-pwm.c
@@ -78,13 +78,10 @@ static int led_pwm_add(struct device *dev, struct led_pwm_priv *priv,
 		led_data->pwm = devm_fwnode_pwm_get(dev, fwnode, NULL);
 	else
 		led_data->pwm = devm_pwm_get(dev, led->name);
-	if (IS_ERR(led_data->pwm)) {
-		ret = PTR_ERR(led_data->pwm);
-		if (ret != -EPROBE_DEFER)
-			dev_err(dev, "unable to request PWM for %s: %d\n",
-				led->name, ret);
-		return ret;
-	}
+	if (IS_ERR(led_data->pwm))
+		return dev_err_probe(dev, PTR_ERR(led_data->pwm),
+				     "unable to request PWM for %s\n",
+				     led->name);
 
 	led_data->cdev.brightness_set_blocking = led_pwm_set;
 
-- 
2.17.1