From nobody Mon Feb 9 08:19:22 2026 Received: from cstnet.cn (smtp84.cstnet.cn [159.226.251.84]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0F2EF2F12CA; Thu, 18 Dec 2025 09:06:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.84 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766048799; cv=none; b=PKDSL6b5nwZuDecrlSlRmsFAVpkkzjqLsILoChikd4uYeg2UtakaTaLHjHMWGN3V0ZaEsGrwgnja6iEi0mbt3MWcqvIQzEN7MxFFjr48x1jgRj9PNIdvVVhQR3LVmpXWcoyYhjexvm58FvV0b1Rh3rnmGD+fZeQ7xwwH+e5yn5w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766048799; c=relaxed/simple; bh=woOCKuv+cQlcPBn0V3RTneI2dXC56NyhIksfDb1G45w=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=BhQG4QWtj6OpK7uIhY3mERCWA0i97gcehd2OjgyyMUQB47jeameqUOr8mxJ7fxHAvDICd4jYEn63E81/x9lnMkGRsFs/SbX03ck2NFBh/ul/XQjLnXNhdTfKdJxFdOJeo0Y3LqiECLE0WcxSd7LflsijwgrwONeFr4VsO4bJk/U= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=isrc.iscas.ac.cn; spf=pass smtp.mailfrom=isrc.iscas.ac.cn; arc=none smtp.client-ip=159.226.251.84 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=isrc.iscas.ac.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=isrc.iscas.ac.cn Received: from localhost.localdomain (unknown [36.112.3.209]) by APP-05 (Coremail) with SMTP id zQCowACnPRESxENpk4kQAQ--.33403S2; Thu, 18 Dec 2025 17:06:26 +0800 (CST) From: Haoxiang Li To: anna-maria@linutronix.de, frederic@kernel.org, tglx@linutronix.de Cc: linux-kernel@vger.kernel.org, Haoxiang Li , stable@vger.kernel.org Subject: [PATCH] clockevents: add a error handling in tick_broadcast_init_sysfs() Date: Thu, 18 Dec 2025 17:06:25 +0800 Message-Id: <20251218090625.557965-1-lihaoxiang@isrc.iscas.ac.cn> X-Mailer: git-send-email 2.25.1 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 X-CM-TRANSID: zQCowACnPRESxENpk4kQAQ--.33403S2 X-Coremail-Antispam: 1UD129KBjvdXoWrurykCrykCF4kJFWftr1UKFg_yoWfAFX_Gw 4jvrykXr4IkF9Ik343Cwn5ZFy09rs7KFWfCr1UtF4xGrWUXFWq9r4DXFs8Zr4DuFyjk3s8 ta4DKrs3Gr13ujkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUb48FF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6r1S6rWUM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_Jr0_JF4l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr0_ Cr1l84ACjcxK6I8E87Iv67AKxVWUJVW8JwA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Gr0_Gr 1UM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xII jxv20xvE14v26r106r15McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr 1lF7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7MxkF7I0En4kS14v26r12 6r1DMxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI 0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUAVWUtwCIc40Y 0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x0267AKxV W8JVWxJwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr1l IxAIcVC2z280aVCY1x0267AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7VUbhvttUUUU U== X-CM-SenderInfo: 5olkt0x0ld0ww6lv2u4olvutnvoduhdfq/1tbiBwsAE2lDlnO8gQAAst Content-Type: text/plain; charset="utf-8" If device_register() fails, call put_device() to drop the device reference. Fixes: 501f867064e9 ("clockevents: Provide sysfs interface") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li --- kernel/time/clockevents.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c index a59bc75ab7c5..94e223cf9c74 100644 --- a/kernel/time/clockevents.c +++ b/kernel/time/clockevents.c @@ -733,8 +733,12 @@ static __init int tick_broadcast_init_sysfs(void) { int err =3D device_register(&tick_bc_dev); =20 - if (!err) - err =3D device_create_file(&tick_bc_dev, &dev_attr_current_device); + if (err) { + put_deivce(&tick_bc_dev); + return err; + } + + err =3D device_create_file(&tick_bc_dev, &dev_attr_current_device); return err; } #else --=20 2.25.1