From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 E49A6492E2A; Wed, 9 Sep 2026 14:01:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788962475; cv=none; b=H8Hrgewycafzfx9VqvB3zNe6fJoyaU9ylja322enDNzR6Ja3gA21uacOwmWUjb2sE/r1DhIgAWGmD0LcY5/Pogp8dhTX1Vc7SKPCuDqT8WqB2Zel/uC8TVgLFVNzYXUyT70P496yKx7cMFNBiCRNJPWn2GKOaTWmOVInay4hhpU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788962475; c=relaxed/simple; bh=fEh+jgwLJYGon39X/Z0+ll3sdhRPoW4bQDW1LBuJQUw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=D5ysY//x/HZqVylyTSysyTiy90yxIKIRn6HLNAaPDg5bNMPi6tMEsQLkD72yKS801RpiPWuvlVLgzFv/d0JrBxKBWBepMqK3p6a9XE1gpIKXOmhhUy2fbXZIO8DnwbF3xVe2InPcjgaUza+XZGbqtDxt4KNx6jCUtgGo/Wz+vzo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=BnROuLwP; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="BnROuLwP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 488911F00A3A; Wed, 9 Sep 2026 14:01:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1788962473; bh=iqlNBeqe9HbCVRrZfsqAqWGDDTvPVAYX175zjNCOsDQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=BnROuLwPM6XWwCCGqtG1jWjcpBDkdW6eFF2gKjLbOfZlbXqA6qWnhptgT84LkhY4v Abmf8KwOqC8CfThZbrIQsfXw0wPFN2p1ZQWl0Czpvzyus/+ka6xhfzzALB7zjLnF0C CquemBS+9D03xKIfuavAJtnn5MRD1EDkk97nyqkE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, WenTao Liang , Mark Brown Subject: [PATCH 7.2 251/556] ASoC: samsung: aries_audio_probe: double of_node_put due to direct assignment without of_node_get Date: Wed, 9 Sep 2026 15:38:51 +0200 Message-ID: <20260909134239.324647916@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260909134230.441546314@linuxfoundation.org> References: <20260909134230.441546314@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 7.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: WenTao Liang commit fb5d1b1c5f8a920ee697545fa6dee16825085717 upstream. In aries_audio_probe(), aries_dai[0].platforms->of_node is assigned the same pointer as aries_dai[0].cpus->of_node (from of_parse_phandle) without calling of_node_get(). When the sound card is deregistered, the ASoC framework calls of_node_put() on both cpus->of_node and platforms->of_node, causing a double put on the same node and a refcount underflow. Add of_node_get(aries_dai[0].cpus->of_node) before the assignment. Cc: stable@vger.kernel.org Fixes: 7a3a7671fa6c ("ASoC: samsung: Add driver for Aries boards") Signed-off-by: WenTao Liang Link: https://patch.msgid.link/20260627035251.60172-1-vulab@iscas.ac.cn Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman --- sound/soc/samsung/aries_wm8994.c | 1 + 1 file changed, 1 insertion(+) --- a/sound/soc/samsung/aries_wm8994.c +++ b/sound/soc/samsung/aries_wm8994.c @@ -658,6 +658,7 @@ static int aries_audio_probe(struct plat goto out; } + of_node_get(aries_dai[0].cpus->of_node); aries_dai[0].platforms->of_node = aries_dai[0].cpus->of_node; /* Set CPU of_node for BT DAI */