From patchwork Tue Jun 18 14:22:44 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Colin Ian King X-Patchwork-Id: 1117957 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=canonical.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 45Sr0168Hlz9sN6 for ; Wed, 19 Jun 2019 00:22:57 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729337AbfFROWt (ORCPT ); Tue, 18 Jun 2019 10:22:49 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:51156 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726248AbfFROWt (ORCPT ); Tue, 18 Jun 2019 10:22:49 -0400 Received: from 1.general.cking.uk.vpn ([10.172.193.212] helo=localhost) by youngberry.canonical.com with esmtpsa (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.76) (envelope-from ) id 1hdF0W-0004yF-Dq; Tue, 18 Jun 2019 14:22:44 +0000 From: Colin King To: Pablo Neira Ayuso , Jozsef Kadlecsik , Florian Westphal , "David S . Miller" , netfilter-devel@vger.kernel.org, coreteam@netfilter.org, netdev@vger.kernel.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH][V2][next] netfilter: synproxy: ensure zero is returned on non-error return path Date: Tue, 18 Jun 2019 15:22:44 +0100 Message-Id: <20190618142244.16463-1-colin.king@canonical.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Colin Ian King Currently functions nf_synproxy_{ipc4|ipv6}_init return an uninitialized garbage value in variable ret on a successful return. Fix this by returning zero on success. Addresses-Coverity: ("Uninitialized scalar variable") Fixes: d7f9b2f18eae ("netfilter: synproxy: extract SYNPROXY infrastructure from {ipt, ip6t}_SYNPROXY") Signed-off-by: Colin Ian King --- net/netfilter/nf_synproxy_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/netfilter/nf_synproxy_core.c b/net/netfilter/nf_synproxy_core.c index 50677285f82e..7bf5202e3222 100644 --- a/net/netfilter/nf_synproxy_core.c +++ b/net/netfilter/nf_synproxy_core.c @@ -798,7 +798,7 @@ int nf_synproxy_ipv4_init(struct synproxy_net *snet, struct net *net) } snet->hook_ref4++; - return err; + return 0; } EXPORT_SYMBOL_GPL(nf_synproxy_ipv4_init); @@ -1223,7 +1223,7 @@ nf_synproxy_ipv6_init(struct synproxy_net *snet, struct net *net) } snet->hook_ref6++; - return err; + return 0; } EXPORT_SYMBOL_GPL(nf_synproxy_ipv6_init);