From nobody Tue Apr 28 10:27:08 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 82DA0C43334 for ; Thu, 2 Jun 2022 10:29:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233822AbiFBK3w (ORCPT ); Thu, 2 Jun 2022 06:29:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33970 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233814AbiFBK3m (ORCPT ); Thu, 2 Jun 2022 06:29:42 -0400 Received: from mail-pj1-x1029.google.com (mail-pj1-x1029.google.com [IPv6:2607:f8b0:4864:20::1029]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 22D31101F8 for ; Thu, 2 Jun 2022 03:29:41 -0700 (PDT) Received: by mail-pj1-x1029.google.com with SMTP id d12-20020a17090abf8c00b001e2eb431ce4so4499327pjs.1 for ; Thu, 02 Jun 2022 03:29:41 -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=63b5H/jbrN4zsEaLSTowv5XFpFbFjaloCWZOaeCKErw=; b=FFB+1QOTTt8is4Lpy02ycAznu7zIS+nBeHgJm6A97sArAMtK4ouvIfXi/9Nmo02kFX x9Su2oapjRRtbDbKcG5zsp+U2MNJ07zXfURS0G2T4Dw/T3RNrEE7dyZpfn2BY8aAhaYV EfLwDuONuMr/5B3geO74OagdcDHZhW2r4BZcxkghTheDsLBz7gZ6YrkdcfRsGAWbq+em oZYbT5CyIotGnq8CpQv0rTlIMQPYae4hbre2C+joSY96odjT8knDKaBt9Gt8dTgLkBuX MRGO1Z3aiNkxO+yBlG4Gg9qdKl6tAtZyhFQp1L6GnE5OMlIj/VBjVRAqhhElOvpRozBC nW0Q== 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=63b5H/jbrN4zsEaLSTowv5XFpFbFjaloCWZOaeCKErw=; b=JYx8eraDepQh72wwL6BxIZtTf4Sdnoy69da7qOOI1IePdB8TxRy2MChAZ8OCifTTNG lFOpovbaPzSi7OBuZTP/YNgbQ/xL3gr96TwDy2rreoys6lHeeQFT3aUFSZxCdzq+bKIc L+kqAuSfLKAlFMiDBRKcjbpK3k4REobNdeAnnE2WhEZQafX+QBdhc6aTbbmbUh0grWmH T+zyqRwqBzDcnt6FjfXluNZiEqH5FMGA/J5UQQ/6QHLPZTSVKI8DkP7dKLgpXT7F1Q4O X76CmFHf31/Mr7xAVjrWBYMJSaDDEjB4H9gip5flj4AiksJGzJuuQyDKxhaq8e35zXZc K3bA== X-Gm-Message-State: AOAM533rFrCd4vxWLd/rarLoMuxE4BkLhV9Q10DsszpcLsxG/ZNkjNuq uvOAjkAQOcugwcTSM7sjEk4= X-Google-Smtp-Source: ABdhPJwu9mqYKpYp1hwjbiBc5BO3cUGxpRnmcfigvPGjyE/9GFjj0Yq3NSrsum6ALSidivqGLDl+iQ== X-Received: by 2002:a17:902:f552:b0:163:f64a:6154 with SMTP id h18-20020a170902f55200b00163f64a6154mr4202768plf.147.1654165780607; Thu, 02 Jun 2022 03:29:40 -0700 (PDT) Received: from localhost.localdomain ([202.120.234.246]) by smtp.googlemail.com with ESMTPSA id h11-20020a62830b000000b0050dc7628150sm3107441pfe.42.2022.06.02.03.29.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Jun 2022 03:29:39 -0700 (PDT) From: Miaoqian Lin To: Joerg Roedel , Will Deacon , Suman Anna , iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org Cc: linmq006@gmail.com Subject: [RESEND PATCH v2] iommu/omap: Fix missing put_device() call in omap_iommu_probe_device Date: Thu, 2 Jun 2022 14:29:26 +0400 Message-Id: <20220602102926.47456-1-linmq006@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" The reference taken by 'of_find_device_by_node()' must be released when not needed anymore. Add the corresponding 'put_device()' in the error handling path and the regular path. Fixes: ede1c2e7d4dc ("iommu/omap: Store iommu_dev pointer in arch_data") Signed-off-by: Miaoqian Lin --- changes in v2: - move put_device() before of_node_put(). - add put_device() in the regular path. v1 Link: https://lore.kernel.org/r/20220107080428.10873-1-linmq006@gmail.com v2 Link: https://lore.kernel.org/r/20220301063326.18120-1-linmq006@gmail.com --- drivers/iommu/omap-iommu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c index d9cf2820c02e..58f3efdac3f7 100644 --- a/drivers/iommu/omap-iommu.c +++ b/drivers/iommu/omap-iommu.c @@ -1683,6 +1683,7 @@ static struct iommu_device *omap_iommu_probe_device(s= truct device *dev) =20 oiommu =3D platform_get_drvdata(pdev); if (!oiommu) { + put_device(&pdev->dev); of_node_put(np); kfree(arch_data); return ERR_PTR(-EINVAL); @@ -1691,6 +1692,7 @@ static struct iommu_device *omap_iommu_probe_device(s= truct device *dev) tmp->iommu_dev =3D oiommu; tmp->dev =3D &pdev->dev; =20 + put_device(&pdev->dev); of_node_put(np); } =20 --=20 2.25.1