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,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 BEF9BC43215 for ; Fri, 22 Nov 2019 11:23:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8ED8B2070E for ; Fri, 22 Nov 2019 11:23:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574421835; bh=SLrivsqtWUW1YaeUJjXQacHkwJO/47lWejE0nFG1YqU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=BTBQfNe4nCxb5x87as/hPCe3RYo3oUuGRkmkapzJrL2i+XenHxh33PsG1Rwfke3uH jJ9WnWxTs9XVAb3F0M5SLjOgV9G8VdhixQk9/z6Qwp6vHE2HPk7C/rkCw//cAVb4by emja4bH4BGQbYcwBgniWxRN3E6OwoAsSC0btzBY8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727673AbfKVKkO (ORCPT ); Fri, 22 Nov 2019 05:40:14 -0500 Received: from mail.kernel.org ([198.145.29.99]:43912 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727653AbfKVKkN (ORCPT ); Fri, 22 Nov 2019 05:40:13 -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 D85D020717; Fri, 22 Nov 2019 10:40:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574419212; bh=SLrivsqtWUW1YaeUJjXQacHkwJO/47lWejE0nFG1YqU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cNQ6KyMy7hv+sz/8UXFkrB+Ic8cjWR8zcgYXp4uqYZY+gqpxmIbXJB/QQP6QrwTQw Txrc4xEpth5rJV37HmqH9hg0bx10k1Jll0OXbH9gvx/sqv+/1AsygINUtauERkd4xP EzR95oEP3w+F2+VYgsrA14shrgLABJ8/ypROaAb8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Stefan Wahren , Raghuram Chary Jallipalli , "David S. Miller" , Sasha Levin Subject: [PATCH 4.9 036/222] net: lan78xx: Bail out if lan78xx_get_endpoints fails Date: Fri, 22 Nov 2019 11:26:16 +0100 Message-Id: <20191122100846.707774879@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191122100830.874290814@linuxfoundation.org> References: <20191122100830.874290814@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Stefan Wahren [ Upstream commit fa8cd98c06407b5798b927cd7fd14d30f360ed02 ] We need to bail out if lan78xx_get_endpoints() fails, otherwise the result is overwritten. Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet") Signed-off-by: Stefan Wahren Reviewed-by: Raghuram Chary Jallipalli Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/usb/lan78xx.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c index e143a7fe93201..a3f9d8f05db4a 100644 --- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -2621,6 +2621,11 @@ static int lan78xx_bind(struct lan78xx_net *dev, struct usb_interface *intf) int i; ret = lan78xx_get_endpoints(dev, intf); + if (ret) { + netdev_warn(dev->net, "lan78xx_get_endpoints failed: %d\n", + ret); + return ret; + } dev->data[0] = (unsigned long)kzalloc(sizeof(*pdata), GFP_KERNEL); -- 2.20.1