tipc: fix integer as NULL pointer sparse warnings in tipc

net/tipc/cluster.c:145:2: warning: Using plain integer as NULL pointer
net/tipc/link.c:3254:36: warning: Using plain integer as NULL pointer
net/tipc/ref.c:151:15: warning: Using plain integer as NULL pointer
net/tipc/zone.c:85:2: warning: Using plain integer as NULL pointer

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

4 files changed, 4 insertions, 4 deletions

diff --git a/net/tipc/cluster.c b/net/tipc/cluster.c
index 95b373913aa0..4bb3404f610b 100644
--- a/net/tipc/cluster.c
+++ b/net/tipc/cluster.c
@@ -142,7 +142,7 @@ void tipc_cltr_attach_node(struct cluster *c_ptr, struct node *n_ptr)
                 max_n_num = tipc_highest_allowed_slave;
         assert(n_num > 0);
         assert(n_num <= max_n_num);
-        assert(c_ptr->nodes[n_num] == 0);
+        assert(c_ptr->nodes[n_num] == NULL);
         c_ptr->nodes[n_num] = n_ptr;
         if (n_num > c_ptr->highest_node)
                 c_ptr->highest_node = n_num;
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 1b17fecee747..cefa99824c58 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -3251,7 +3251,7 @@ static void link_print(struct link *l_ptr, struct print_buf *buf,
                 if ((mod(msg_seqno(buf_msg(l_ptr->last_out)) -
                          msg_seqno(buf_msg(l_ptr->first_out)))
                      != (l_ptr->out_queue_size - 1))
-                    || (l_ptr->last_out->next != 0)) {
+                    || (l_ptr->last_out->next != NULL)) {
                         tipc_printf(buf, "\nSend queue inconsistency\n");
                         tipc_printf(buf, "first_out= %x ", l_ptr->first_out);
                         tipc_printf(buf, "next_out= %x ", l_ptr->next_out);
diff --git a/net/tipc/ref.c b/net/tipc/ref.c
index 6704a58c7851..c38744c96ed1 100644
--- a/net/tipc/ref.c
+++ b/net/tipc/ref.c
@@ -148,7 +148,7 @@ u32 tipc_ref_acquire(void *object, spinlock_t **lock)
                 reference = (next_plus_upper & ~index_mask) + index;
                 entry->data.reference = reference;
                 entry->object = object;
-                if (lock != 0)
+                if (lock != NULL)
                         *lock = &entry->lock;
                 spin_unlock_bh(&entry->lock);
         }
diff --git a/net/tipc/zone.c b/net/tipc/zone.c
index 114e173f11a5..3506f8563441 100644
--- a/net/tipc/zone.c
+++ b/net/tipc/zone.c
@@ -82,7 +82,7 @@ void tipc_zone_attach_cluster(struct _zone *z_ptr, struct cluster *c_ptr)
 
         assert(c_ptr->addr);
         assert(c_num <= tipc_max_clusters);
-        assert(z_ptr->clusters[c_num] == 0);
+        assert(z_ptr->clusters[c_num] == NULL);
         z_ptr->clusters[c_num] = c_ptr;
 }