tcp_metrics: Remove the unused return code from tcp_metrics_flush_all

tcp_metrics_flush_all always returns 0.  Remove the unnecessary return code.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 4 deletions

diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c
index 461c3d2e1ca4..0d07e14f2ca5 100644
--- a/net/ipv4/tcp_metrics.c
+++ b/net/ipv4/tcp_metrics.c
@@ -1043,7 +1043,7 @@ out_free:
 
 #define deref_genl(p)   rcu_dereference_protected(p, lockdep_genl_is_held())
 
-static int tcp_metrics_flush_all(struct net *net)
+static void tcp_metrics_flush_all(struct net *net)
 {
         unsigned int max_rows = 1U << net->ipv4.tcp_metrics_hash_log;
         struct tcpm_hash_bucket *hb = net->ipv4.tcp_metrics_hash;
@@ -1064,7 +1064,6 @@ static int tcp_metrics_flush_all(struct net *net)
                         tm = next;
                 }
         }
-        return 0;
 }
 
 static int tcp_metrics_nl_cmd_del(struct sk_buff *skb, struct genl_info *info)
@@ -1081,8 +1080,10 @@ static int tcp_metrics_nl_cmd_del(struct sk_buff *skb, struct genl_info *info)
         ret = parse_nl_addr(info, &daddr, &hash, 1);
         if (ret < 0)
                 return ret;
-        if (ret > 0)
-                return tcp_metrics_flush_all(net);
+        if (ret > 0) {
+                tcp_metrics_flush_all(net);
+                return 0;
+        }
         ret = parse_nl_saddr(info, &saddr);
         if (ret < 0)
                 src = false;