linux-kernel - [PATCH] net: ipva: fix uninitialized variable warning

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Date:   Thu, 13 Jun 2019 14:28:41 -0300
From:   Charles <18oliveira.charles@...il.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        rodrigosiqueiramelo@...il.com
Subject: [PATCH] net: ipva: fix uninitialized variable warning

Avoid following compiler warning on uninitialized variable

net/ipv4/fib_semantics.c: In function ‘fib_check_nh_v4_gw’:
net/ipv4/fib_semantics.c:1023:12: warning: ‘err’ may be used
uninitialized in this function [-Wmaybe-uninitialized]
   if (!tbl || err) {

Signed-off-by: Charles Oliveira <18oliveira.charles@...il.com>
---
 net/ipv4/fib_semantics.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index b80410673915..ae47e046695c 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -964,7 +964,7 @@ static int fib_check_nh_v4_gw(struct net *net, struct fib_nh *nh, u32 table,
 {
 	struct net_device *dev;
 	struct fib_result res;
-	int err;
+	int err = -EINVAL;
 
 	if (nh->fib_nh_flags & RTNH_F_ONLINK) {
 		unsigned int addr_type;
-- 
2.11.0