tipc: Eliminate improper use of TIPC_OK error code

This patch corrects many places where TIPC routines indicated
successful completion by returning TIPC_OK instead of 0.
(The TIPC_OK symbol has the value 0, but it should only be used
in contexts that deal with the error code field of a TIPC
message header.)

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c
index 9cd35ee..bc72fbc 100644
--- a/net/tipc/eth_media.c
+++ b/net/tipc/eth_media.c
@@ -82,7 +82,7 @@
 				 dev->dev_addr, clone->len);
 		dev_queue_xmit(clone);
 	}
-	return TIPC_OK;
+	return 0;
 }
 
 /**
@@ -113,12 +113,12 @@
 			if (likely(buf->len == size)) {
 				buf->next = NULL;
 				tipc_recv_msg(buf, eb_ptr->bearer);
-				return TIPC_OK;
+				return 0;
 			}
 		}
 	}
 	kfree_skb(buf);
-	return TIPC_OK;
+	return 0;
 }
 
 /**