From nobody Wed May 8 21:56:43 2024 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 DD98AC433F5 for ; Mon, 23 May 2022 14:02:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236802AbiEWOCW (ORCPT ); Mon, 23 May 2022 10:02:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37430 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236759AbiEWOCS (ORCPT ); Mon, 23 May 2022 10:02:18 -0400 Received: from mail-pl1-x62f.google.com (mail-pl1-x62f.google.com [IPv6:2607:f8b0:4864:20::62f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7FE9C5005D for ; Mon, 23 May 2022 07:02:15 -0700 (PDT) Received: by mail-pl1-x62f.google.com with SMTP id 10so9741634plj.0 for ; Mon, 23 May 2022 07:02:15 -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=/uPYvFeZZTkSS8WJjVNbiWQjecsqWmcRfd8xMpRg01E=; b=P3PHrmTAKhkPTFWosISHQujRQUzSuvYr35CbU+SPaqg2lslJhSb5IyhvSw0mzzk9kR 82VlQKVbOpAqMmhcG7IX6OeFBEZp+1hl6ojaXwFqjLlN/G0vLW8Mh7DfPebUGmT2oki6 SuvLQOxErrRKGAlI4FhXZ27F5tjbsx1XMsJX2M4LoiA03rh+VZvGDVyLCSXgjXdbwmSz bbmNG/+XdAz7/JLXaFY+53DLwEhWI6AkVCxzEEdDlHT9VmAQ8fm9PpyHyQkh0BMcBboR abIYgucvKt8pUeTdldsxwNL2sCrMeEAGZQLVYAkduBTspicz7QzptSqQ34NPk/yyfIND ++tg== 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=/uPYvFeZZTkSS8WJjVNbiWQjecsqWmcRfd8xMpRg01E=; b=t0fGtqUb4OQaO9VAxdESEwgn7yh9LvigvAgK3ZjxWz7Cl/PahTkPWCRiaH34nDeSxy YqLGmHrVoMz+7bD8/82WiuUAx50/V9G8KNEzTy7yACs+6cakRxxxRYOH/EhSc5VDrK26 4xCRMMAw3ribE50qZm9yCc0XR2Qeh/LtMEXIhkjX0pmUhkIN0p/BveKcfp1I9zTQuKZg HSKIj0UU4FcgN0UdKNdb6S+OZGyXsQvYfERTcM86mA8ic2PysktBeNG60lk63IBXohND 47YHHo9BLz+0P2DhXb9GiFCRl77LXlW1FG8WEflof5os539jEDFFeTSUt8eOWL/tOcVK bBjA== X-Gm-Message-State: AOAM531JXJ9XLBabShxcUg5bqLaTF+yxyXybhJflsNqH6vJ8xOWRcuWo VRU6IxvpNK3u7IwX+IpsuFk= X-Google-Smtp-Source: ABdhPJycRpTQOgsr2QIRd/XkuP5twDc97y3ftQbX8ngGJKEKcSlErTYDksg8GPnzJ06vkOrXGmWP7w== X-Received: by 2002:a17:903:32d2:b0:161:d485:613f with SMTP id i18-20020a17090332d200b00161d485613fmr23118997plr.173.1653314534606; Mon, 23 May 2022 07:02:14 -0700 (PDT) Received: from localhost.localdomain ([202.120.234.246]) by smtp.googlemail.com with ESMTPSA id i5-20020a62c105000000b0050dc7628169sm7203366pfg.67.2022.05.23.07.02.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 May 2022 07:02:14 -0700 (PDT) From: Miaoqian Lin To: Linus Walleij , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , linux-arm-kernel@lists.infradead.org, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Cc: linmq006@gmail.com Subject: [PATCH] mtd: maps: Fix refcount leak in of_flash_probe_versatile Date: Mon, 23 May 2022 18:02:05 +0400 Message-Id: <20220523140205.48625-1-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" of_find_matching_node_and_match() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak. Fixes: b0afd44bc192 ("mtd: physmap_of: add a hook for Versatile write prote= ction") Signed-off-by: Miaoqian Lin Reviewed-by: Linus Walleij --- drivers/mtd/maps/physmap-versatile.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mtd/maps/physmap-versatile.c b/drivers/mtd/maps/physma= p-versatile.c index ad7cd9cfaee0..297a50957356 100644 --- a/drivers/mtd/maps/physmap-versatile.c +++ b/drivers/mtd/maps/physmap-versatile.c @@ -207,6 +207,7 @@ int of_flash_probe_versatile(struct platform_device *pd= ev, =20 versatile_flashprot =3D (enum versatile_flashprot)devid->data; rmap =3D syscon_node_to_regmap(sysnp); + of_node_put(sysnp); if (IS_ERR(rmap)) return PTR_ERR(rmap); =20 --=20 2.25.1