netlink: Fix bugs in nlmsg_end() conversions.

Commit 053c095a82cf ("netlink: make nlmsg_end() and genlmsg_end()
void") didn't catch all of the cases where callers were breaking out
on the return value being equal to zero, which they no longer should
when zero means success.

Fix all such cases.

Reported-by: Marcel Holtmann <marcel@holtmann.org>
Reported-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 3 deletions

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 @@ cont:
                                               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 @@ cont:
                                               NETLINK_CB(cb->skb).portid,
                                               cb->nlh->nlmsg_seq,
                                               RTM_NEWNETCONF, NLM_F_MULTI,
-                                              -1) <= 0)
+                                              -1) < 0)
                         goto done;
                 else
                         h++;