tipc: replace 0 by NULL for pointers

Fix sparse warning:
net/tipc/link.c:1924:40: warning: Using plain integer as NULL pointer

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/tipc/link.c b/net/tipc/link.c
index 23bcc1132365..082c3b5b32a1 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1921,7 +1921,7 @@ static struct tipc_node *tipc_link_find_owner(const char *link_name,
 {
         struct tipc_link *l_ptr;
         struct tipc_node *n_ptr;
-        struct tipc_node *found_node = 0;
+        struct tipc_node *found_node = NULL;
         int i;
 
         *bearer_id = 0;