Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Andy Shevchenko <andy.shevchenko@gmail.com>
To:     Pavel Machek <pavel@ucw.cz>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        Amireddy Mallikarjuna reddy 
        <mallikarjunax.reddy@linux.intel.com>,
        Linus Walleij <linus.walleij@linaro.org>,
        =?UTF-8?q?Marek=20Beh=C3=BAn?= <marek.behun@nic.cz>,
        Abanoub Sameh <abanoubsameh8@gmail.com>,
        Dan Murphy <dmurphy@ti.com>,
        Krzysztof Kozlowski <krzk@kernel.org>,
        linux-leds@vger.kernel.org, linux-kernel@vger.kernel.org
Cc:     Andy Shevchenko <andy.shevchenko@gmail.com>,
        Jacek Anaszewski <j.anaszewski@samsung.com>
Subject: [PATCH v1 02/28] leds: core: The -ENOTSUPP should never be seen by user space
Date:   Mon, 10 May 2021 12:50:19 +0300
Message-Id: <20210510095045.3299382-3-andy.shevchenko@gmail.com>
In-Reply-To: <20210510095045.3299382-1-andy.shevchenko@gmail.com>
References: <20210510095045.3299382-1-andy.shevchenko@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Replace -ENOTSUPP by -EOPNOTSUPP when returning from exported function.

Fixes: 13ae79bbe4c2 ("leds: core: Drivers shouldn't enforce SYNC/ASYNC brightness setting")
Cc: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
---
 drivers/leds/led-core.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/leds/led-core.c b/drivers/leds/led-core.c
index d56ff4939492..f962620a504f 100644
--- a/drivers/leds/led-core.c
+++ b/drivers/leds/led-core.c
@@ -289,6 +289,8 @@ EXPORT_SYMBOL_GPL(led_set_brightness_nosleep);
 
 int led_set_brightness_sync(struct led_classdev *led_cdev, unsigned int value)
 {
+	int ret;
+
 	if (led_cdev->blink_delay_on || led_cdev->blink_delay_off)
 		return -EBUSY;
 
@@ -297,7 +299,10 @@ int led_set_brightness_sync(struct led_classdev *led_cdev, unsigned int value)
 	if (led_cdev->flags & LED_SUSPENDED)
 		return 0;
 
-	return __led_set_brightness_blocking(led_cdev, led_cdev->brightness);
+	ret = __led_set_brightness_blocking(led_cdev, led_cdev->brightness);
+	if (ret == -ENOTSUPP)
+		return -EOPNOTSUPP;
+	return ret;
 }
 EXPORT_SYMBOL_GPL(led_set_brightness_sync);
 
-- 
2.31.1