linux-kernel - [PATCH 5.12 568/700] leds: class: The -ENOTSUPP should never be seen by user space

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Date:   Mon, 12 Jul 2021 08:10:51 +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, Jean-Jacques Hiblot <jjhiblot@...com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Pavel Machek <pavel@....cz>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.12 568/700] leds: class: The -ENOTSUPP should never be seen by user space

From: Andy Shevchenko <andy.shevchenko@...il.com>

[ Upstream commit 0ac40af86077982a5346dbc9655172d2775d6b08 ]

Drop the bogus error code and let of_led_get() to take care about absent
of_node.

Fixes: e389240ad992 ("leds: Add managed API to get a LED from a device driver")
Cc: Jean-Jacques Hiblot <jjhiblot@...com>
Signed-off-by: Andy Shevchenko <andy.shevchenko@...il.com>
Signed-off-by: Pavel Machek <pavel@....cz>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/leds/led-class.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 2e495ff67856..fa3f5f504ff7 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -285,10 +285,6 @@ struct led_classdev *__must_check devm_of_led_get(struct device *dev,
 	if (!dev)
 		return ERR_PTR(-EINVAL);
 
-	/* Not using device tree? */
-	if (!IS_ENABLED(CONFIG_OF) || !dev->of_node)
-		return ERR_PTR(-ENOTSUPP);
-
 	led = of_led_get(dev->of_node, index);
 	if (IS_ERR(led))
 		return led;
-- 
2.30.2