datapath: correct an invalid BUG_ON

table->count is uint32_t

Signed-off-by: Hong Zhiguo <honkiko@gmail.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>

diff --git a/datapath/flow.c b/datapath/flow.c
index afebc7a..2aeb704 100644 (file)
--- a/datapath/flow.c
+++ b/datapath/flow.c
@@ -825,9 +825,9 @@ void ovs_flow_tbl_insert(struct flow_table *table, struct sw_flow *flow,
 
 void ovs_flow_tbl_remove(struct flow_table *table, struct sw_flow *flow)
 {
+       BUG_ON(table->count == 0);
        hlist_del_rcu(&flow->hash_node[table->node_ver]);
        table->count--;
-       BUG_ON(table->count < 0);
 }
 
 /* The size of the argument for each %OVS_KEY_ATTR_* Netlink attribute.  */