linux-kernel - [PATCH 4.14 069/115] leds: pwm: silently error out on EPROBE

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 for Android: free password hash cracker in your pocket

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

Message-Id: <20190515090704.494207874@linuxfoundation.org>
Date:   Wed, 15 May 2019 12:55:49 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jerome Brunet <jbrunet@...libre.com>,
        Jacek Anaszewski <jacek.anaszewski@...il.com>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.14 069/115] leds: pwm: silently error out on EPROBE_DEFER

[ Upstream commit 9aec30371fb095a0c9415f3f0146ae269c3713d8 ]

When probing, if we fail to get the pwm due to probe deferal, we shouldn't
print an error message. Just be silent in this case.

Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@...il.com>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
---
 drivers/leds/leds-pwm.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c
index 8d456dc6c5bfe..83f9bbe57e02b 100644
--- a/drivers/leds/leds-pwm.c
+++ b/drivers/leds/leds-pwm.c
@@ -101,8 +101,9 @@ static int led_pwm_add(struct device *dev, struct led_pwm_priv *priv,
 		led_data->pwm = devm_pwm_get(dev, led->name);
 	if (IS_ERR(led_data->pwm)) {
 		ret = PTR_ERR(led_data->pwm);
-		dev_err(dev, "unable to request PWM for %s: %d\n",
-			led->name, ret);
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "unable to request PWM for %s: %d\n",
+				led->name, ret);
 		return ret;
 	}
 
-- 
2.20.1