tipc: remove unnecessary variables and conditions

We remove a number of unnecessary variables and branches
in TIPC. This patch is cosmetic and does not change the
operation of TIPC in any way.

Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: Wang Weidong <wangweidong1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 3b61851..32037c5 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -239,7 +239,6 @@
 int tipc_sock_create_local(int type, struct socket **res)
 {
 	int rc;
-	struct sock *sk;
 
 	rc = sock_create_lite(AF_TIPC, type, 0, res);
 	if (rc < 0) {
@@ -248,8 +247,6 @@
 	}
 	tipc_sk_create(&init_net, *res, 0, 1);
 
-	sk = (*res)->sk;
-
 	return 0;
 }
 
@@ -1311,14 +1308,12 @@
 static unsigned int rcvbuf_limit(struct sock *sk, struct sk_buff *buf)
 {
 	struct tipc_msg *msg = buf_msg(buf);
-	unsigned int limit;
 
 	if (msg_connected(msg))
-		limit = sysctl_tipc_rmem[2];
-	else
-		limit = sk->sk_rcvbuf >> TIPC_CRITICAL_IMPORTANCE <<
-			msg_importance(msg);
-	return limit;
+		return sysctl_tipc_rmem[2];
+
+	return sk->sk_rcvbuf >> TIPC_CRITICAL_IMPORTANCE <<
+		msg_importance(msg);
 }
 
 /**