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 X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1F100C10F11 for ; Mon, 22 Apr 2019 19:49:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D7AF32190B for ; Mon, 22 Apr 2019 19:49:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555962575; bh=4LMSCIR1Th0mz8SSjIH8jn9qHmI65qaQLfDcxCqkh5I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=hi0tstbO57wv4kk8tPpOD1FZed0XB/HOtB9ESD4Lx84+xUsbp3q7XyH3v/9doils2 tdCC4MX7qU3hz8Daggwjo+wECPAKEesDLITWhl0JEUKqVl407mZ1SB2FkhMl2I7w2V rAt0ogT9ctFKdrMz/bjuFJdbfcguTjQugyFhlhJA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730875AbfDVTtd (ORCPT ); Mon, 22 Apr 2019 15:49:33 -0400 Received: from mail.kernel.org ([198.145.29.99]:53228 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730852AbfDVTt3 (ORCPT ); Mon, 22 Apr 2019 15:49:29 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 946302075A; Mon, 22 Apr 2019 19:49:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555962568; bh=4LMSCIR1Th0mz8SSjIH8jn9qHmI65qaQLfDcxCqkh5I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=k6R9LypMqZPLLo/gKrvPfGslvdMGWQwN6lmmHIxZHHfYTmmiQhhwn2zck1aB2kYEO /r5BfA/BTaW7cCAgC5C20yM9DYiE4CdEtkeMHLXCuBasDKqCixTnmsymkUj4860YZE JzKX5g3fjR3pJx8ib94u5//tDmPbWji4MRtuVOn4= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Wen Yang , Wingman Kwok , Murali Karicheri , "David S. Miller" , netdev@vger.kernel.org, Sasha Levin Subject: [PATCH AUTOSEL 4.9 20/29] net: ethernet: ti: fix possible object reference leak Date: Mon, 22 Apr 2019 15:48:39 -0400 Message-Id: <20190422194848.13049-20-sashal@kernel.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190422194848.13049-1-sashal@kernel.org> References: <20190422194848.13049-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Wen Yang [ Upstream commit 75eac7b5f68b0a0671e795ac636457ee27cc11d8 ] The call to of_get_child_by_name returns a node pointer with refcount incremented thus it must be explicitly decremented after the last usage. Detected by coccinelle with the following warnings: ./drivers/net/ethernet/ti/netcp_ethss.c:3661:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 3654, but without a corresponding object release within this function. ./drivers/net/ethernet/ti/netcp_ethss.c:3665:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 3654, but without a corresponding object release within this function. Signed-off-by: Wen Yang Cc: Wingman Kwok Cc: Murali Karicheri Cc: "David S. Miller" Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: David S. Miller Signed-off-by: Sasha Levin (Microsoft) --- drivers/net/ethernet/ti/netcp_ethss.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/ti/netcp_ethss.c b/drivers/net/ethernet/ti/netcp_ethss.c index d543298d6750..ff24524e7f46 100644 --- a/drivers/net/ethernet/ti/netcp_ethss.c +++ b/drivers/net/ethernet/ti/netcp_ethss.c @@ -3122,12 +3122,16 @@ static int gbe_probe(struct netcp_device *netcp_device, struct device *dev, ret = netcp_txpipe_init(&gbe_dev->tx_pipe, netcp_device, gbe_dev->dma_chan_name, gbe_dev->tx_queue_id); - if (ret) + if (ret) { + of_node_put(interfaces); return ret; + } ret = netcp_txpipe_open(&gbe_dev->tx_pipe); - if (ret) + if (ret) { + of_node_put(interfaces); return ret; + } /* Create network interfaces */ INIT_LIST_HEAD(&gbe_dev->gbe_intf_head); -- 2.19.1