From nobody Mon Apr 27 03:18:10 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5397AC433EF for ; Sat, 18 Jun 2022 01:58:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1383679AbiFRB6J (ORCPT ); Fri, 17 Jun 2022 21:58:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48630 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1383656AbiFRB5x (ORCPT ); Fri, 17 Jun 2022 21:57:53 -0400 Received: from mail-m964.mail.126.com (mail-m964.mail.126.com [123.126.96.4]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id AC79413D14 for ; Fri, 17 Jun 2022 18:57:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=126.com; s=s110527; h=From:Subject:Date:Message-Id:MIME-Version; bh=kk5pK Hd/2mIBIK8MdK5R9s8Uq/oarlTlmc5aNu1O+CA=; b=VwIAfyMA2jVL4JYqokrTX luiPKA19cIyiVJNT0wgny1XLq0tEAWpM+x0hV9kanQyE9m1fN3/wBRUWofI8+vVS omTpXwwt9ntk/vRtz7AZGQKAdXAsNYQ7aRCEd8wp5Wg15YZQ/RBYIEt+lg5H65tu pPzuGLwdWBBQidD4vn61Sc= Received: from localhost.localdomain (unknown [124.16.139.61]) by smtp9 (Coremail) with SMTP id NeRpCgB3jMHWMK1iA1L9Ew--.45551S2; Sat, 18 Jun 2022 09:56:39 +0800 (CST) From: Liang He To: mpe@ellerman.id.au, benh@kernel.crashing.org, paulus@samba.org, npiggin@gmail.com, clg@kaod.org, haren@linux.ibm.com, christophe.leroy@csgroup.eu Cc: windhl@126.com, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: [PATCH] powerpc: powernv: opal-core: Fix refcount leak bug Date: Sat, 18 Jun 2022 09:56:37 +0800 Message-Id: <20220618015637.4055531-1-windhl@126.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: NeRpCgB3jMHWMK1iA1L9Ew--.45551S2 X-Coremail-Antispam: 1Uf129KBjvdXoWrury7Gry3ZryrXryUWr4rZrb_yoW3urb_Kw 1xJa47Jrs5Gr4vva4Duw4fWr1qv3s3Grs8Gr1Iq3ZrtFy3ta9xGw47JrWUW3WDurZFyrZ8 GFZ3trsrCa4SvjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IUj2jgDUUUUU== X-Originating-IP: [124.16.139.61] X-CM-SenderInfo: hzlqvxbo6rjloofrz/1tbi7QUkF1pEAONKeAABsV Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" In create_opalcore(), of_find_node_by_name() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore. Signed-off-by: Liang He --- arch/powerpc/platforms/powernv/opal-core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/platforms/powernv/opal-core.c b/arch/powerpc/plat= forms/powernv/opal-core.c index adcb1a1a2bfe..bb7657115f1d 100644 --- a/arch/powerpc/platforms/powernv/opal-core.c +++ b/arch/powerpc/platforms/powernv/opal-core.c @@ -348,6 +348,8 @@ static int __init create_opalcore(void) if (!dn || ret) pr_warn("WARNING: Failed to read OPAL base & entry values\n"); =20 + of_node_put(dn); + /* Use count to keep track of the program headers */ count =3D 0; =20 --=20 2.25.1