From patchwork Sat Jan 11 09:50:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "gregkh@linuxfoundation.org" X-Patchwork-Id: 234154 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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, 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 260D2C33C9E for ; Sat, 11 Jan 2020 10:06:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F028B20848 for ; Sat, 11 Jan 2020 10:06:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578737195; bh=94hAH9NlWUCGPC3/bxmyNYELJcLDeZ9hO8DfsagdILU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=YzQsKywyDN8HyOWG4GNb9EX4uUqbJvdEicHiRcAvcSJhdxt5zvLTvg7vy7wMsMNR6 fe764GdyLA/VAQ/zBZydXIFHRSAJ6xRhyihYleb7BNegu+yZIzuyeji+mZqYCPeWl9 fu7g1aCTeL6q4sDjmctre5WTsPLLYUX867+bK3hM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728974AbgAKKGe (ORCPT ); Sat, 11 Jan 2020 05:06:34 -0500 Received: from mail.kernel.org ([198.145.29.99]:40716 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728893AbgAKKGd (ORCPT ); Sat, 11 Jan 2020 05:06:33 -0500 Received: from localhost (unknown [62.119.166.9]) (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 225B42084D; Sat, 11 Jan 2020 10:06:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578737193; bh=94hAH9NlWUCGPC3/bxmyNYELJcLDeZ9hO8DfsagdILU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=isgQklSF3LkHNmWy8TZo+ywq8ojfoeUNDMfI6jh632ea+GlIcLfTEqSAUg/BJKbel MfzEfjYJun4TN/nAbLu45I2kvFjP0tncJJjA9eKpD2B8lCXr4RumabwFicD9mo/3Gv TLdiTDgvr4iMtHJIcgwlPScZNtmLPpgKA4xvHnNI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Eric Dumazet , "David S. Miller" Subject: [PATCH 4.9 87/91] vlan: vlan_changelink() should propagate errors Date: Sat, 11 Jan 2020 10:50:20 +0100 Message-Id: <20200111094913.063690740@linuxfoundation.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200111094844.748507863@linuxfoundation.org> References: <20200111094844.748507863@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Eric Dumazet [ Upstream commit eb8ef2a3c50092bb018077c047b8dba1ce0e78e3 ] Both vlan_dev_change_flags() and vlan_dev_set_egress_priority() can return an error. vlan_changelink() should not ignore them. Fixes: 07b5b17e157b ("[VLAN]: Use rtnl_link API") Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/8021q/vlan_netlink.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) --- a/net/8021q/vlan_netlink.c +++ b/net/8021q/vlan_netlink.c @@ -92,11 +92,13 @@ static int vlan_changelink(struct net_de struct ifla_vlan_flags *flags; struct ifla_vlan_qos_mapping *m; struct nlattr *attr; - int rem; + int rem, err; if (data[IFLA_VLAN_FLAGS]) { flags = nla_data(data[IFLA_VLAN_FLAGS]); - vlan_dev_change_flags(dev, flags->flags, flags->mask); + err = vlan_dev_change_flags(dev, flags->flags, flags->mask); + if (err) + return err; } if (data[IFLA_VLAN_INGRESS_QOS]) { nla_for_each_nested(attr, data[IFLA_VLAN_INGRESS_QOS], rem) { @@ -107,7 +109,9 @@ static int vlan_changelink(struct net_de if (data[IFLA_VLAN_EGRESS_QOS]) { nla_for_each_nested(attr, data[IFLA_VLAN_EGRESS_QOS], rem) { m = nla_data(attr); - vlan_dev_set_egress_priority(dev, m->from, m->to); + err = vlan_dev_set_egress_priority(dev, m->from, m->to); + if (err) + return err; } } return 0;