[TIPC]: Fix simple sparse warnings

Tried to run the new tipc stack through sparse.
Following patch fixes all cases where 0 was used
as replacement of NULL.
Use NULL to document this is a pointer and to silence sparse.

This brough sparse warning count down with 127 to 24 warnings.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/tipc/node.h b/net/tipc/node.h
index 29f7ae6992d4..781126e084ae 100644
--- a/net/tipc/node.h
+++ b/net/tipc/node.h
@@ -121,7 +121,7 @@ static inline struct node *tipc_node_find(u32 addr)
                 if (c_ptr)
                         return c_ptr->nodes[tipc_node(addr)];
         }
-        return 0;
+        return NULL;
 }
 
 static inline struct node *tipc_node_select(u32 addr, u32 selector)