linux-kernel - [PATCH v1 1/1] leds: core: Refactor led_update

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Date:   Thu,  9 Jun 2022 19:22:33 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Denis Osterland-Heim <Denis.Osterland@...hl.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Pavel Machek <pavel@....cz>
Subject: [PATCH v1 1/1] leds: core: Refactor led_update_brightness() to use standard pattern

The standard conditional pattern is to check for errors first and
bail out if any. Refactor led_update_brightness() accordingly.

While at it, drop unneeded assignment and return 0 unconditionally
on success.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/leds/led-core.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/leds/led-core.c b/drivers/leds/led-core.c
index 4a97cb745788..96a2817712e5 100644
--- a/drivers/leds/led-core.c
+++ b/drivers/leds/led-core.c
@@ -304,17 +304,17 @@ EXPORT_SYMBOL_GPL(led_set_brightness_sync);
 
 int led_update_brightness(struct led_classdev *led_cdev)
 {
-	int ret = 0;
+	int ret;
 
 	if (led_cdev->brightness_get) {
 		ret = led_cdev->brightness_get(led_cdev);
-		if (ret >= 0) {
-			led_cdev->brightness = ret;
-			return 0;
-		}
+		if (ret < 0)
+			return ret;
+
+		led_cdev->brightness = ret;
 	}
 
-	return ret;
+	return 0;
 }
 EXPORT_SYMBOL_GPL(led_update_brightness);
 
-- 
2.35.1