fou: exit early when parsing config fails

Not a big deal, just for corretness.

Cc: Tom Herbert <tom@herbertland.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 1 deletions

diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c
index c8db62718e5f..ad0ee827a0c0 100644
--- a/net/ipv4/fou.c
+++ b/net/ipv4/fou.c
@@ -605,8 +605,11 @@ static int fou_nl_cmd_add_port(struct sk_buff *skb, struct genl_info *info)
 static int fou_nl_cmd_rm_port(struct sk_buff *skb, struct genl_info *info)
 {
         struct fou_cfg cfg;
+        int err;
 
-        parse_nl_config(info, &cfg);
+        err = parse_nl_config(info, &cfg);
+        if (err)
+                return err;
 
         return fou_destroy(&init_net, &cfg);
 }