[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, 3 insertions, 3 deletions

diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c
index 830f90999041..953307a9df1d 100644
--- a/net/tipc/name_distr.c
+++ b/net/tipc/name_distr.c
@@ -168,8 +168,8 @@ void tipc_named_withdraw(struct publication *publ)
 void tipc_named_node_up(unsigned long node)
 {
         struct publication *publ;
-        struct distr_item *item = 0;
-        struct sk_buff *buf = 0;
+        struct distr_item *item = NULL;
+        struct sk_buff *buf = NULL;
         u32 left = 0;
         u32 rest;
         u32 max_item_buf;
@@ -200,7 +200,7 @@ void tipc_named_node_up(unsigned long node)
                             "<%u.%u.%u>\n", tipc_zone(node), 
                             tipc_cluster(node), tipc_node(node));
                         tipc_link_send(buf, node, node);
-                        buf = 0;
+                        buf = NULL;
                 }
         }
 exit: