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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 F1BA3C432C0 for ; Tue, 3 Dec 2019 22:53:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C504D215E5 for ; Tue, 3 Dec 2019 22:53:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575413619; bh=pSfYKfebvfswSMG9aERDVNa+OxFdxdH6xAe+7HpCZGE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=y+Wwx4zP2S5P5v5DD3Od4Oyw6SmTSmFXOJuc6IZtX9tS+Vd+kac5MLW6pYvgTUZuR GL5OLKBwtteN1kkoynOIhezXykkMkRMLvWu5dk6B9G1KynfSVxWjlSiEltpi6jvfCB 9XDq2AH6M6iJ3UNiqrpaWRt+gGlD+Y7cxeglT32o= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730171AbfLCWxi (ORCPT ); Tue, 3 Dec 2019 17:53:38 -0500 Received: from mail.kernel.org ([198.145.29.99]:46902 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730161AbfLCWxe (ORCPT ); Tue, 3 Dec 2019 17:53:34 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A3EEE20865; Tue, 3 Dec 2019 22:53:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575413614; bh=pSfYKfebvfswSMG9aERDVNa+OxFdxdH6xAe+7HpCZGE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=h5phQB4Np5j8xyAVZP0dXVGlrVhFR2HGTnBja8ZLBQ5bQVim76qN+mWfuvy4mjV4A X62Dh8Kh8d496R5T2UBZCIEF85Vrd9u4uZUPYDvISGAeA6BZSJNyN76fH4w7tLrgh8 fO3oD3PfNked532v778pBa6bPo0nEM/jinCO98Mc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Wen Yang , Peng Hao , Zhao Qiang , "David S. Miller" , netdev@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Sasha Levin Subject: [PATCH 4.19 195/321] net/wan/fsl_ucc_hdlc: Avoid double free in ucc_hdlc_probe() Date: Tue, 3 Dec 2019 23:34:21 +0100 Message-Id: <20191203223437.264747584@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191203223427.103571230@linuxfoundation.org> References: <20191203223427.103571230@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 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 40752b3eae29f8ca2378e978a02bd6dbeeb06d16 ] This patch fixes potential double frees if register_hdlc_device() fails. Signed-off-by: Wen Yang Reviewed-by: Peng Hao CC: Zhao Qiang CC: "David S. Miller" CC: netdev@vger.kernel.org CC: linuxppc-dev@lists.ozlabs.org CC: linux-kernel@vger.kernel.org Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/wan/fsl_ucc_hdlc.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c index 5f0366a125e26..0212f576a838c 100644 --- a/drivers/net/wan/fsl_ucc_hdlc.c +++ b/drivers/net/wan/fsl_ucc_hdlc.c @@ -1113,7 +1113,6 @@ static int ucc_hdlc_probe(struct platform_device *pdev) if (register_hdlc_device(dev)) { ret = -ENOBUFS; pr_err("ucc_hdlc: unable to register hdlc device\n"); - free_netdev(dev); goto free_dev; } -- 2.20.1