IB/mlx5: Increase flow table reference count in create rule

Move the reference count increasing of flow table to be in
create_flow_rule, it will increase the reference count for each rule
creation and not for each flow.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index dd766d6..79f0486 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -1776,6 +1776,7 @@
 		goto free;
 	}
 
+	ft_prio->refcount++;
 	handler->prio = ft_prio;
 
 	ft_prio->flow_table = ft;
@@ -1800,6 +1801,7 @@
 					       flow_attr, dst);
 		if (IS_ERR(handler_dst)) {
 			mlx5_del_flow_rule(handler->rule);
+			ft_prio->refcount--;
 			kfree(handler);
 			handler = handler_dst;
 		} else {
@@ -1862,6 +1864,7 @@
 						 dst);
 		if (IS_ERR(handler_ucast)) {
 			mlx5_del_flow_rule(handler->rule);
+			ft_prio->refcount--;
 			kfree(handler);
 			handler = handler_ucast;
 		} else {
@@ -1928,7 +1931,6 @@
 		goto destroy_ft;
 	}
 
-	ft_prio->refcount++;
 	mutex_unlock(&dev->flow_db.lock);
 	kfree(dst);