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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E4961C43334 for ; Mon, 13 Jun 2022 13:15:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1359442AbiFMNN1 (ORCPT ); Mon, 13 Jun 2022 09:13:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35734 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357254AbiFMNHR (ORCPT ); Mon, 13 Jun 2022 09:07:17 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CCE9B381B2; Mon, 13 Jun 2022 04:18:47 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 32D73B80EAB; Mon, 13 Jun 2022 11:18:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9B58AC34114; Mon, 13 Jun 2022 11:18:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1655119114; bh=dwTBRByocbJ8UGwNR2U6VMjbYtsFF+Xh/didYYZH2vY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=a5oauioiUeuvR6wojwPaBI6JCKUywCnduvNX/Va1ovOxodP6uuCcI/oo/MU0VaUdA oaxu/PNERWil/65WAp1LAo8uyIVaF13rbg77NO36XTX6XVj6jrgJ3AIPObHJXCb4eh y59wHWqtstgFpVieFDpDiX9ZlXBYseGJrTOREfbU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Miaoqian Lin , Jakub Kicinski , Sasha Levin Subject: [PATCH 5.15 146/247] net: dsa: lantiq_gswip: Fix refcount leak in gswip_gphy_fw_list Date: Mon, 13 Jun 2022 12:10:48 +0200 Message-Id: <20220613094927.384042771@linuxfoundation.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220613094922.843438024@linuxfoundation.org> References: <20220613094922.843438024@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Miaoqian Lin [ Upstream commit 0737e018a05e2aa352828c52bdeed3b02cff2930 ] Every iteration of for_each_available_child_of_node() decrements the reference count of the previous node. when breaking early from a for_each_available_child_of_node() loop, we need to explicitly call of_node_put() on the gphy_fw_np. Add missing of_node_put() to avoid refcount leak. Fixes: 14fceff4771e ("net: dsa: Add Lantiq / Intel DSA driver for vrx200") Signed-off-by: Miaoqian Lin Link: https://lore.kernel.org/r/20220605072335.11257-1-linmq006@gmail.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/dsa/lantiq_gswip.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/dsa/lantiq_gswip.c b/drivers/net/dsa/lantiq_gswip.c index 8a8f392813d8..2240a3d35122 100644 --- a/drivers/net/dsa/lantiq_gswip.c +++ b/drivers/net/dsa/lantiq_gswip.c @@ -2047,8 +2047,10 @@ static int gswip_gphy_fw_list(struct gswip_priv *priv, for_each_available_child_of_node(gphy_fw_list_np, gphy_fw_np) { err = gswip_gphy_fw_probe(priv, &priv->gphy_fw[i], gphy_fw_np, i); - if (err) + if (err) { + of_node_put(gphy_fw_np); goto remove_gphy; + } i++; } -- 2.35.1