[TIPC]: Fix two minor sparse warnings.

fix two warnings generated by sparse:

link.c:2386 symbol 'msgcount' shadows an earlier one
node.c:244 symbol 'addr_string' shadows an earlier one
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/tipc/link.c

@@ -2383,10 +2383,10 @@ void tipc_link_changeover(struct link *l_ptr)
 		struct tipc_msg *msg = buf_msg(crs);
 
 		if ((msg_user(msg) == MSG_BUNDLER) && split_bundles) {
-			u32 msgcount = msg_msgcnt(msg);
 			struct tipc_msg *m = msg_get_wrapped(msg);
 			unchar* pos = (unchar*)m;
 
+			msgcount = msg_msgcnt(msg);
 			while (msgcount--) {
 				msg_set_seqno(m,msg_seqno(msg));
 				tipc_link_tunnel(l_ptr, &tunnel_hdr, m,

net/tipc/node.c

@@ -241,8 +241,6 @@ struct node *tipc_node_attach_link(struct link *l_ptr)
 		char addr_string[16];
 
 		if (n_ptr->link_cnt >= 2) {
-			char addr_string[16];
-
 			err("Attempt to create third link to %s\n",
 			    addr_string_fill(addr_string, n_ptr->addr));
 			return NULL;