From nobody Mon Apr 27 03:23:59 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 D63F0C433EF for ; Fri, 17 Jun 2022 10:56:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1381813AbiFQK4d (ORCPT ); Fri, 17 Jun 2022 06:56:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52180 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1380407AbiFQK4d (ORCPT ); Fri, 17 Jun 2022 06:56:33 -0400 Received: from mail-m963.mail.126.com (mail-m963.mail.126.com [123.126.96.3]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id C21426B7D0 for ; Fri, 17 Jun 2022 03:56:31 -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=9Mrui S4DmngTVu9k6eC0bPm1cFgp62PM9Aty8aRo8wM=; b=ODBz4vpaP/4oMEwhnVHbU /ICbKoOcKbr8MTujPb5gWPc/V8BXMgr6lhqTkw7zHbLZvisyIYxGnL+7X+jRrxTh a7gikhoU7o84/uAoP6zUz6jpHbFktq+QHOfPj8vdUynSzrarDPkIF4DXECxZLzpX +bqX0wsvvX0/WR1DJqpVqM= Received: from localhost.localdomain (unknown [124.16.139.61]) by smtp8 (Coremail) with SMTP id NORpCgBH3oq9XaxiPoxsFw--.38055S2; Fri, 17 Jun 2022 18:55:57 +0800 (CST) From: Liang He To: dinguyen@kernel.org, linux@armlinux.org.uk Cc: windhl@126.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] arm: mach-socfpga: Fix refcount leak bug in platsmp Date: Fri, 17 Jun 2022 18:55:56 +0800 Message-Id: <20220617105556.4041305-1-windhl@126.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: NORpCgBH3oq9XaxiPoxsFw--.38055S2 X-Coremail-Antispam: 1Uf129KBjvdXoWrtF4UXry8JryrKry3tFyUtrb_yoW3WFg_JF n3tay7Wr1rZF4vg3yUCa13Wrs7A3s5Cwn3Xa4vvrn0yw4YvF13CrsFyas2q3yUJr4a9FWx Jan7Kr4Y939IvjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IUUIztUUUUUU== X-Originating-IP: [124.16.139.61] X-CM-SenderInfo: hzlqvxbo6rjloofrz/1tbi7R0jF1pEAN9-6AAAsS Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" In socfpga_smp_prepare_cpus(), of_find_compatible_node() 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/arm/mach-socfpga/platsmp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-socfpga/platsmp.c b/arch/arm/mach-socfpga/platsm= p.c index 201191cf68f3..349e6c54518e 100644 --- a/arch/arm/mach-socfpga/platsmp.c +++ b/arch/arm/mach-socfpga/platsmp.c @@ -78,6 +78,7 @@ static void __init socfpga_smp_prepare_cpus(unsigned int = max_cpus) } =20 socfpga_scu_base_addr =3D of_iomap(np, 0); + of_node_put(np); if (!socfpga_scu_base_addr) return; scu_enable(socfpga_scu_base_addr); --=20 2.25.1