From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 48FE715CAE for ; Tue, 8 Nov 2022 14:07:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id ADC73C433D6; Tue, 8 Nov 2022 14:07:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1667916472; bh=Ep/y4/cstCgemSwJV0Uds14xdtYuEZhoWjh9FLshEdw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=G85Ax/8JjmuiqpCxj3d8Tj9FHy9GW8PP8NKFnVtXh2BpZHpuKURwLyc6L7+8DZKVY ogj+Yqj8jR0fr4+D3SMxSpD2/JgeU1ExB61hunKjV7XTZPBX3O0dkuk+Afs1P5o8/I PKwou9lTnsztQ+Q8dkKZBa+1Wj50vuOqnWeQOFUE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Christophe JAILLET , Martin Habets , Jakub Kicinski , Sasha Levin Subject: [PATCH 6.0 032/197] sfc: Fix an error handling path in efx_pci_probe() Date: Tue, 8 Nov 2022 14:37:50 +0100 Message-Id: <20221108133356.269035212@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221108133354.787209461@linuxfoundation.org> References: <20221108133354.787209461@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Christophe JAILLET [ Upstream commit 6c412da54c80a54b1a8b7f89677f6e82f0fabec4 ] If an error occurs after the first kzalloc() the corresponding memory allocation is never freed. Add the missing kfree() in the error handling path, as already done in the remove() function. Fixes: 7e773594dada ("sfc: Separate efx_nic memory from net_device memory") Signed-off-by: Christophe JAILLET Acked-by: Martin Habets Link: https://lore.kernel.org/r/dc114193121c52c8fa3779e49bdd99d4b41344a9.1667077009.git.christophe.jaillet@wanadoo.fr Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/ethernet/sfc/efx.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c index 153d68e29b8b..68a68477ab7b 100644 --- a/drivers/net/ethernet/sfc/efx.c +++ b/drivers/net/ethernet/sfc/efx.c @@ -1059,8 +1059,10 @@ static int efx_pci_probe(struct pci_dev *pci_dev, /* Allocate and initialise a struct net_device */ net_dev = alloc_etherdev_mq(sizeof(probe_data), EFX_MAX_CORE_TX_QUEUES); - if (!net_dev) - return -ENOMEM; + if (!net_dev) { + rc = -ENOMEM; + goto fail0; + } probe_ptr = netdev_priv(net_dev); *probe_ptr = probe_data; efx->net_dev = net_dev; @@ -1132,6 +1134,8 @@ static int efx_pci_probe(struct pci_dev *pci_dev, WARN_ON(rc > 0); netif_dbg(efx, drv, efx->net_dev, "initialisation failed. rc=%d\n", rc); free_netdev(net_dev); + fail0: + kfree(probe_data); return rc; } -- 2.35.1