From nobody Wed Apr 1 09:43:06 2026 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4E4EB381AEA; Tue, 31 Mar 2026 18:30:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774981861; cv=none; b=Qjrlb7GQ8dJ75DRHmsDJ75mmU4pJ5EZSgvS+AqnTlW0n5c2ZFKLyhNSmWUQzlk7PYVq4wJgGHcCEHwIveKMuQ0zjd3C9inS6Y2B+x1AgIGzxReo9I2CGjKUovZ+bq34skJ54yKQK4qdG82Dh3ejvJnudgtAIGezFKJd2JI/9FsE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774981861; c=relaxed/simple; bh=522hjp91dw7JR1XgDkg2FMoJVtGsvvmKWbIFx5YybA8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=oAmt8yljfL2n8muO3Ofoyc9CzBrSlk2pFlvnDPlw4mV1AonlW/8wJuxnkeedcBjjZAbAQs+2401+aETXgfcta6doniZ7xTDVlSh+jC3nhWcZIBY62i7/6DgG4m3jZHpLP1TIm7Dhe+wL+Bc9aPvjNZMT9mHkHD1u6q13UCBDYDM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=eFdVc/BN; arc=none smtp.client-ip=192.198.163.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="eFdVc/BN" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1774981860; x=1806517860; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=522hjp91dw7JR1XgDkg2FMoJVtGsvvmKWbIFx5YybA8=; b=eFdVc/BNLgijBqV1ez4+6N+R28526sIwkNSxcY7a2dM/WpKfGdb12N7u qTx0bhzNA05cLR6GG9yFW2f5Nf1WvIuzOgrT+tGPBMQ+0bSEsbd1Tv09U 0DqaKL+cR3A83UDNZW0QyJI7A3LgX+ImgzuoGYKDZ7om5sB5uA7iHiUBP +DFovk1KuB6i1529KI6yVxCdLP+ZBOnB3fodPxwFVOl7thzvZ4hfen/8L mGfFSP588JukijvPl7l+fe35o0ai76gPORe/qnpI4ubIE79Tjg0qZUJR+ D5eDOAwlkhAF9GTgyklHnHURpCJJHePs/YjaeuY+p7VNKOrltHqkXfSLc Q==; X-CSE-ConnectionGUID: 5OKx+2BXRPaEihJgGQe1cw== X-CSE-MsgGUID: vlkvbuwlSJ2jN0Lg4D+5lA== X-IronPort-AV: E=McAfee;i="6800,10657,11745"; a="101459634" X-IronPort-AV: E=Sophos;i="6.23,152,1770624000"; d="scan'208";a="101459634" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 Mar 2026 11:30:59 -0700 X-CSE-ConnectionGUID: QTJ0liTJQ9K4rZgkNk7jIw== X-CSE-MsgGUID: o45z7g0fQrSV+ZRFkIfwGw== X-ExtLoop1: 1 Received: from black.igk.intel.com ([10.91.253.5]) by fmviesa003.fm.intel.com with ESMTP; 31 Mar 2026 11:30:57 -0700 Received: by black.igk.intel.com (Postfix, from userid 1003) id 63CF798; Tue, 31 Mar 2026 20:30:56 +0200 (CEST) From: Andy Shevchenko To: linux-leds@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Lee Jones , Pavel Machek , Andy Shevchenko Subject: [PATCH v2 1/2] leds: class: Make led_remove_lookup() NULL-aware Date: Tue, 31 Mar 2026 20:28:28 +0200 Message-ID: <20260331183055.1209526-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260331183055.1209526-1-andriy.shevchenko@linux.intel.com> References: <20260331183055.1209526-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" It is a usual pattern in the kernel to make releasing functions be NULL-awa= re so they become a no-op. This helps reducing unneeded checks in the code whe= re the given resource is optional. Signed-off-by: Andy Shevchenko --- 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 cad55e2beafa..b53ebe3a0faa 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); --=20 2.50.1