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[2604:1380:45d1:ec00::1]) by mx.google.com with ESMTPS id f27-20020a05620a20db00b00787a61b4023si8268764qka.252.2024.02.27.12.52.53 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Feb 2024 12:52:53 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-83992-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) client-ip=2604:1380:45d1:ec00::1; Authentication-Results: mx.google.com; dkim=pass header.i=@wanadoo.fr header.s=t20230301 header.b=o63+GAqK; arc=pass (i=1 spf=pass spfdomain=wanadoo.fr dkim=pass dkdomain=wanadoo.fr dmarc=pass fromdomain=wanadoo.fr); spf=pass (google.com: domain of linux-kernel+bounces-83992-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-83992-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=wanadoo.fr Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ny.mirrors.kernel.org (Postfix) with ESMTPS id 621F91C24626 for ; Tue, 27 Feb 2024 20:52:53 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 1A1F1154448; Tue, 27 Feb 2024 20:51:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=wanadoo.fr header.i=@wanadoo.fr header.b="o63+GAqK" Received: from smtp.smtpout.orange.fr (smtp-27.smtpout.orange.fr [80.12.242.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 014A714F97C for ; Tue, 27 Feb 2024 20:51:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.12.242.27 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709067077; cv=none; b=RHmnvD8w7SKJjPGdYhrYgzLkAwDA7g2udxZY2Ar4CNtQ25TUKq2XYVg10Vhh4EHW5d34BCmNb1Df0IJGfGQpOfuSrfml7mj/7pn0PpPrGp64pDtXy09RGX3mhPqoRmC9a2ReLvvaOruBeBVcbfaIBi+tDuMKwMh/2SShPISnlrY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709067077; c=relaxed/simple; bh=C0EhGGIcvZ5dia6z/DMgXS0/s8mPCNUY3CZZl/PV8yI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=QDTMAI9xLMlkFZtI1lNu4FxDeDLTDqjJsznvRw+dooD6dfpL4Cf8/4NsD5lQW03SpJ0YODAEY+u3tzg0lG6k2bHjIDGQhnuNLehrcs//beNXTwX4q6UpVuhDQidMGON0e9kTgY6uYG8BfDRdfoi8nAMt00deVYlzJOjhWLVd9Cg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=wanadoo.fr; spf=pass smtp.mailfrom=wanadoo.fr; dkim=pass (2048-bit key) header.d=wanadoo.fr header.i=@wanadoo.fr header.b=o63+GAqK; arc=none smtp.client-ip=80.12.242.27 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=wanadoo.fr Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=wanadoo.fr Received: from fedora.home ([92.140.202.140]) by smtp.orange.fr with ESMTPA id f4PjrRU7nxsbMf4PxrnVkm; Tue, 27 Feb 2024 21:51:14 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wanadoo.fr; s=t20230301; t=1709067074; bh=7fh9n2YY+v7xWTDGOZYJY6/nuH13jrBRMC/bW8tKScA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=o63+GAqKGfx/mlADiFhta1gyxBFJ8uc639Wp16WrZKT6slPdnUDf17LNyr9/4eh// sDAicxQKAatVayHw1tHwmP6X4Y8F7GXuzcPSj2qBAFCuzAARKkhnWPYUZiPr7TSv8/ 4vbVBkC29wH8xASlmKeSWdw5FXA5LlBNvayZ+gBHD5aAUfCODUU5BnnGjWnsAQ/ZRO ap6xlASO0me8gaNIKO3O/ZITYI5HMMeQui98osjS3WjiFvEHlHgcN+6EFlFvCuO4L0 09Ggdh6XcrocUN3r4stlWPKqLRrVcrh/FYfT/mw5+ZYMnsf6FGgpMxC0QMGLnmsxxs bDRdjBlEij6Cw== X-ME-Helo: fedora.home X-ME-Auth: Y2hyaXN0b3BoZS5qYWlsbGV0QHdhbmFkb28uZnI= X-ME-Date: Tue, 27 Feb 2024 21:51:14 +0100 X-ME-IP: 92.140.202.140 From: Christophe JAILLET To: andy@greyhouse.net, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christophe JAILLET Subject: [PATCH net 2/2] net: tehuti: Fix leaks in the error handling path of bdx_probe() Date: Tue, 27 Feb 2024 21:50:56 +0100 Message-ID: <9090b599c7574892b77a9521e3ddb3a52a154205.1709066709.git.christophe.jaillet@wanadoo.fr> X-Mailer: git-send-email 2.43.2 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1792086820565599482 X-GMAIL-MSGID: 1792086820565599482 If an error occurs when allocating the net_device, all the one already allocated and registered should be released, as already done in the remove function. Add a new label, remove the now useless 'err_out_disable_msi' label and adjust the error handling path accordingly. Fixes: 1a348ccc1047 ("[NET]: Add Tehuti network driver.") Signed-off-by: Christophe JAILLET Reviewed-by: Jiri Pirko --- Compile tested only. --- drivers/net/ethernet/tehuti/tehuti.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/tehuti/tehuti.c b/drivers/net/ethernet/tehuti/tehuti.c index 938a5caf5a3b..6678179885cb 100644 --- a/drivers/net/ethernet/tehuti/tehuti.c +++ b/drivers/net/ethernet/tehuti/tehuti.c @@ -1965,7 +1965,7 @@ bdx_probe(struct pci_dev *pdev, const struct pci_device_id *ent) ndev = alloc_etherdev(sizeof(struct bdx_priv)); if (!ndev) { err = -ENOMEM; - goto err_out_disable_msi; + goto err_out_free; } ndev->netdev_ops = &bdx_netdev_ops; @@ -2031,13 +2031,13 @@ bdx_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (bdx_read_mac(priv)) { pr_err("load MAC address failed\n"); err = -EFAULT; - goto err_out_disable_msi; + goto err_out_free_current; } SET_NETDEV_DEV(ndev, &pdev->dev); err = register_netdev(ndev); if (err) { pr_err("register_netdev failed\n"); - goto err_out_free; + goto err_out_free_current; } netif_carrier_off(ndev); netif_stop_queue(ndev); @@ -2046,9 +2046,14 @@ bdx_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } RET(0); -err_out_free: +err_out_free_current: free_netdev(ndev); -err_out_disable_msi: +err_out_free: + while (--port >= 0) { + ndev = nic->priv[port]->ndev; + unregister_netdev(ndev); + free_netdev(ndev); + } #ifdef BDX_MSI if (nic->irq_type == IRQ_MSI) pci_disable_msi(pdev);