net: cleanup some rcu_dereference_raw

RCU api had been completed and rcu_access_pointer() or
rcu_dereference_protected() are better than generic
rcu_dereference_raw()

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index b1ab887..56e42ab 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -712,13 +712,13 @@
 	struct rps_dev_flow_table *flow_table;
 
 
-	map = rcu_dereference_raw(queue->rps_map);
+	map = rcu_dereference_protected(queue->rps_map, 1);
 	if (map) {
 		RCU_INIT_POINTER(queue->rps_map, NULL);
 		kfree_rcu(map, rcu);
 	}
 
-	flow_table = rcu_dereference_raw(queue->rps_flow_table);
+	flow_table = rcu_dereference_protected(queue->rps_flow_table, 1);
 	if (flow_table) {
 		RCU_INIT_POINTER(queue->rps_flow_table, NULL);
 		call_rcu(&flow_table->rcu, rps_dev_flow_table_release);