diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index d36d564f149f..70fe9e10ac86 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -2128,7 +2128,7 @@ static int neightbl_dump_info(struct sk_buff *skb, struct netlink_callback *cb)
 
 		if (neightbl_fill_info(skb, tbl, NETLINK_CB(cb->skb).portid,
 				       cb->nlh->nlmsg_seq, RTM_NEWNEIGHTBL,
-				       NLM_F_MULTI) <= 0)
+				       NLM_F_MULTI) < 0)
 			break;
 
 		nidx = 0;
@@ -2144,7 +2144,7 @@ static int neightbl_dump_info(struct sk_buff *skb, struct netlink_callback *cb)
 						     NETLINK_CB(cb->skb).portid,
 						     cb->nlh->nlmsg_seq,
 						     RTM_NEWNEIGHTBL,
-						     NLM_F_MULTI) <= 0)
+						     NLM_F_MULTI) < 0)
 				goto out;
 		next:
 			nidx++;
@@ -2274,7 +2274,7 @@ static int neigh_dump_table(struct neigh_table *tbl, struct sk_buff *skb,
 			if (neigh_fill_info(skb, n, NETLINK_CB(cb->skb).portid,
 					    cb->nlh->nlmsg_seq,
 					    RTM_NEWNEIGH,
-					    NLM_F_MULTI) <= 0) {
+					    NLM_F_MULTI) < 0) {
 				rc = -1;
 				goto out;
 			}
@@ -2311,7 +2311,7 @@ static int pneigh_dump_table(struct neigh_table *tbl, struct sk_buff *skb,
 			if (pneigh_fill_info(skb, n, NETLINK_CB(cb->skb).portid,
 					    cb->nlh->nlmsg_seq,
 					    RTM_NEWNEIGH,
-					    NLM_F_MULTI, tbl) <= 0) {
+					    NLM_F_MULTI, tbl) < 0) {
 				read_unlock_bh(&tbl->lock);
 				rc = -1;
 				goto out;
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index e13b9dbdf154..0e26b9f66cad 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1327,7 +1327,7 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
 			 */
 			WARN_ON((err == -EMSGSIZE) && (skb->len == 0));
 
-			if (err <= 0)
+			if (err < 0)
 				goto out;
 
 			nl_dump_check_consistent(cb, nlmsg_hdr(skb));
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 812e5e6e88fb..1d7c1256e845 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -1710,9 +1710,6 @@ static int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh)
 		rt->rt_flags |= RTCF_NOTIFY;
 
 	err = dn_rt_fill_info(skb, NETLINK_CB(in_skb).portid, nlh->nlmsg_seq, RTM_NEWROUTE, 0, 0);
-
-	if (err == 0)
-		goto out_free;
 	if (err < 0) {
 		err = -EMSGSIZE;
 		goto out_free;
@@ -1763,7 +1760,7 @@ int dn_cache_dump(struct sk_buff *skb, struct netlink_callback *cb)
 			skb_dst_set(skb, dst_clone(&rt->dst));
 			if (dn_rt_fill_info(skb, NETLINK_CB(cb->skb).portid,
 					cb->nlh->nlmsg_seq, RTM_NEWROUTE,
-					1, NLM_F_MULTI) <= 0) {
+					1, NLM_F_MULTI) < 0) {
 				skb_dst_drop(skb);
 				rcu_read_unlock_bh();
 				goto done;
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 5f344eb3fc25..59ebe16d06fc 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1883,7 +1883,7 @@ static int inet_netconf_dump_devconf(struct sk_buff *skb,
 						      cb->nlh->nlmsg_seq,
 						      RTM_NEWNETCONF,
 						      NLM_F_MULTI,
-						      -1) <= 0) {
+						      -1) < 0) {
 				rcu_read_unlock();
 				goto done;
 			}
@@ -1899,7 +1899,7 @@ static int inet_netconf_dump_devconf(struct sk_buff *skb,
 					      NETLINK_CB(cb->skb).portid,
 					      cb->nlh->nlmsg_seq,
 					      RTM_NEWNETCONF, NLM_F_MULTI,
-					      -1) <= 0)
+					      -1) < 0)
 			goto done;
 		else
 			h++;
@@ -1910,7 +1910,7 @@ static int inet_netconf_dump_devconf(struct sk_buff *skb,
 					      NETLINK_CB(cb->skb).portid,
 					      cb->nlh->nlmsg_seq,
 					      RTM_NEWNETCONF, NLM_F_MULTI,
-					      -1) <= 0)
+					      -1) < 0)
 			goto done;
 		else
 			h++;
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index f6e43ca5e641..2000110c75f0 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2483,7 +2483,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh)
 	err = rt_fill_info(net, dst, src, &fl4, skb,
 			   NETLINK_CB(in_skb).portid, nlh->nlmsg_seq,
 			   RTM_NEWROUTE, 0, 0);
-	if (err <= 0)
+	if (err < 0)
 		goto errout_free;
 
 	err = rtnl_unicast(skb, net, NETLINK_CB(in_skb).portid);
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 8975d9501d50..d6b4f5d08014 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4213,7 +4213,7 @@ static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb,
 				goto cont;
 
 			if (in6_dump_addrs(idev, skb, cb, type,
-					   s_ip_idx, &ip_idx) <= 0)
+					   s_ip_idx, &ip_idx) < 0)
 				goto done;
 cont:
 			idx++;