linux-kernel - [PATCH] netfilter: initialize 'ret' variable

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Date:   Fri,  2 Dec 2022 15:03:31 +0800
From:   Li Qiong <liqiong@...china.com>
To:     Pablo Neira Ayuso <pablo@...filter.org>,
        Jozsef Kadlecsik <kadlec@...filter.org>,
        Florian Westphal <fw@...len.de>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        netfilter-devel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        coreteam@...filter.org, Yu Zhe <yuzhe@...china.com>,
        Li Qiong <liqiong@...china.com>
Subject: [PATCH] netfilter: initialize 'ret' variable

The 'ret' should need to be initialized to 0, in case
return a uninitialized value.

Signed-off-by: Li Qiong <liqiong@...china.com>
---
 net/netfilter/nf_flow_table_ip.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/nf_flow_table_ip.c b/net/netfilter/nf_flow_table_ip.c
index b350fe9d00b0..225ff865d609 100644
--- a/net/netfilter/nf_flow_table_ip.c
+++ b/net/netfilter/nf_flow_table_ip.c
@@ -351,7 +351,7 @@ nf_flow_offload_ip_hook(void *priv, struct sk_buff *skb,
 	struct rtable *rt;
 	struct iphdr *iph;
 	__be32 nexthop;
-	int ret;
+	int ret = 0;
 
 	if (skb->protocol != htons(ETH_P_IP) &&
 	    !nf_flow_skb_encap_protocol(skb, htons(ETH_P_IP), &offset))
@@ -613,7 +613,7 @@ nf_flow_offload_ipv6_hook(void *priv, struct sk_buff *skb,
 	u32 hdrsize, offset = 0;
 	struct ipv6hdr *ip6h;
 	struct rt6_info *rt;
-	int ret;
+	int ret = 0;
 
 	if (skb->protocol != htons(ETH_P_IPV6) &&
 	    !nf_flow_skb_encap_protocol(skb, htons(ETH_P_IPV6), &offset))
-- 
2.11.0