From mboxrd@z Thu Jan 1 00:00:00 1970 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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 71EA3C433EF for ; Sun, 5 Jun 2022 06:52:22 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4LG6kD5hWMz3bpX for ; Sun, 5 Jun 2022 16:52:20 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20210112 header.b=etC4GCey; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gmail.com (client-ip=2607:f8b0:4864:20::1035; helo=mail-pj1-x1035.google.com; envelope-from=linmq006@gmail.com; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20210112 header.b=etC4GCey; dkim-atps=neutral Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [IPv6:2607:f8b0:4864:20::1035]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4LG6jT5FjSz3bhB for ; Sun, 5 Jun 2022 16:51:40 +1000 (AEST) Received: by mail-pj1-x1035.google.com with SMTP id j7so10439975pjn.4 for ; Sat, 04 Jun 2022 23:51:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=WgLvepossqYxUVw9ClZad/mto5k7o8Anzm/y5Yj+fuA=; b=etC4GCeyd4d0cZcDWCELzE23ufOSBZ/Ogr0TO86ojbcgGscfaGC6SDrMeeSwcFjqGZ TpaKCFYcoR99z6vef37qqqJBvTX7jjM60fsMiO0tp/MRAvWIwix1gfChvOCq9/pWd+kN xvP/18vCCsPHDOhOjRiYZUIh0u0YbE9fwRcIPLswHhFO8nZIGAj/74XxtvUmieilR+4X foxckJGbCC+Gd+YHoTvZ3Ph402WEWV/Pr9ILFj7Xu74YUGyEHKeEeEayd4eFfX5eMlqV BkmH81FCAUEFVjUQRL7Ycsp6GWQbloIcCFqBZll3abLesa88xwhHeZj55EAIn4YScCl9 NVOA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=WgLvepossqYxUVw9ClZad/mto5k7o8Anzm/y5Yj+fuA=; b=ZBHJWxytiMBdZeY2LtbTR/EkIgS6qUSNOEhgALozRHojZcjDvsT4gQgg0MBRUQwexC WnaMddlBjZlVy6OjqO2SMenAGs/lNYkDk8Yiv6i2uRDXrchPfXaPoSVx0O23WGLpEMIZ QxyY1WSfrNfo7oDitPxww9HeGfmxPi2qTlDIULrejy9Zhsg9wvYIqRe9chRVgZVjH8i4 afvVmKRsr/357Si1cH9DID9bdHR6UiW3lzc3AmG3WVnMTFoIbI+LXkQImAZcaNdNRMIr /88AvE5XBUbR/3/EUWTJADGSBVKdvDrDjPXHvsN2h/CKOwmXTU4Az5kTEL/KHecig1GK o1VA== X-Gm-Message-State: AOAM533vsH6H/X9b7ORrFUvOxY6HRUsg80DN+lqiLISQdk9pOHqzcBcb yPFwWecwUvc7tswh5BOv2+4= X-Google-Smtp-Source: ABdhPJzVgwC+hEi6kwStpzn4oICo4kcq38lduufTqJH4dyo3N8ef1ZJFOaUBSHXH0ob6imm9qSJoqA== X-Received: by 2002:a17:90a:c202:b0:1e2:e772:5f0a with SMTP id e2-20020a17090ac20200b001e2e7725f0amr19758314pjt.109.1654411898813; Sat, 04 Jun 2022 23:51:38 -0700 (PDT) Received: from localhost.localdomain ([202.120.234.246]) by smtp.googlemail.com with ESMTPSA id r6-20020a170902be0600b00162037fbacdsm8194582pls.187.2022.06.04.23.51.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 04 Jun 2022 23:51:38 -0700 (PDT) From: Miaoqian Lin To: Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: [PATCH] powerpc/cell/axon_msi: Fix refcount leak in setup_msi_msg_address Date: Sun, 5 Jun 2022 10:51:29 +0400 Message-Id: <20220605065129.63906-1-linmq006@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linmq006@gmail.com Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" of_get_next_parent() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() in the error path to avoid refcount leak. Fixes: ce21b3c9648a ("[CELL] add support for MSI on Axon-based Cell systems") Signed-off-by: Miaoqian Lin --- arch/powerpc/platforms/cell/axon_msi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c index f3291e957a19..5b012abca773 100644 --- a/arch/powerpc/platforms/cell/axon_msi.c +++ b/arch/powerpc/platforms/cell/axon_msi.c @@ -223,6 +223,7 @@ static int setup_msi_msg_address(struct pci_dev *dev, struct msi_msg *msg) if (!prop) { dev_dbg(&dev->dev, "axon_msi: no msi-address-(32|64) properties found\n"); + of_node_put(dn); return -ENOENT; } -- 2.25.1