From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Hans de Goede <johannes.goede@oss.qualcomm.com>,
linux-leds@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Lee Jones <lee@kernel.org>, Pavel Machek <pavel@kernel.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: [PATCH v1 1/1] leds: class: Make led_remove_lookup() NULL-aware
Date: Fri, 27 Mar 2026 11:27:29 +0100 [thread overview]
Message-ID: <20260327102729.797254-1-andriy.shevchenko@linux.intel.com> (raw)
It is a usual pattern in the kernel to make releasing functions be NULL-aware
so they become a no-op. This helps reducing unneeded checks in the code where
the given resource is optional.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/leds/led-class.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index d34a19453560..172fc44bb602 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -421,6 +421,9 @@ EXPORT_SYMBOL_GPL(led_add_lookup);
*/
void led_remove_lookup(struct led_lookup_data *led_lookup)
{
+ if (!led_lookup)
+ return;
+
mutex_lock(&leds_lookup_lock);
list_del(&led_lookup->list);
mutex_unlock(&leds_lookup_lock);
--
2.50.1
reply other threads:[~2026-03-27 10:27 UTC|newest]
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