netdev - [PATCH net-next] fib_rules: fix error return code

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Message-Id: <20170426140350.25451-1-weiyj.lk@gmail.com>
Date:   Wed, 26 Apr 2017 14:03:50 +0000
From:   Wei Yongjun <weiyj.lk@...il.com>
To:     Lorenzo Colitti <lorenzo@...gle.com>,
        Ido Schimmel <idosch@...lanox.com>,
        David Ahern <dsa@...ulusnetworks.com>,
        Mateusz Bajorski <mateusz.bajorski@...ia.com>,
        Johannes Berg <johannes.berg@...el.com>
Cc:     Wei Yongjun <weiyongjun1@...wei.com>, netdev@...r.kernel.org
Subject: [PATCH net-next] fib_rules: fix error return code

From: Wei Yongjun <weiyongjun1@...wei.com>

Fix to return error code -EINVAL from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 622ec2c9d524 ("net: core: add UID to flows, rules, and routes")
Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
---
 net/core/fib_rules.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index c58c1df..f21c4d3 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -440,6 +440,7 @@ int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr *nlh,
 	if (tb[FRA_TUN_ID])
 		rule->tun_id = nla_get_be64(tb[FRA_TUN_ID]);
 
+	err = -EINVAL;
 	if (tb[FRA_L3MDEV]) {
 #ifdef CONFIG_NET_L3_MASTER_DEV
 		rule->l3mdev = nla_get_u8(tb[FRA_L3MDEV]);
@@ -461,7 +462,6 @@ int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr *nlh,
 	else
 		rule->suppress_ifgroup = -1;
 
-	err = -EINVAL;
 	if (tb[FRA_GOTO]) {
 		if (rule->action != FR_ACT_GOTO)
 			goto errout_free;
@@ -592,8 +592,10 @@ int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr *nlh,
 
 	if (tb[FRA_UID_RANGE]) {
 		range = nla_get_kuid_range(tb);
-		if (!uid_range_set(&range))
+		if (!uid_range_set(&range)) {
+			err = -EINVAL;
 			goto errout;
+		}
 	} else {
 		range = fib_kuid_range_unset;
 	}