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-rw-r--r--src/vnet/flow/flow.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/vnet/flow/flow.c b/src/vnet/flow/flow.c
index 4d867fee365..9b6a376af3e 100644
--- a/src/vnet/flow/flow.c
+++ b/src/vnet/flow/flow.c
@@ -96,6 +96,9 @@ vnet_flow_enable (vnet_main_t * vnm, u32 flow_index, u32 hw_if_index)
uword private_data;
int rv;
+ if (f == 0)
+ return VNET_FLOW_ERROR_NO_SUCH_ENTRY;
+
if (!vnet_hw_interface_is_valid (vnm, hw_if_index))
return VNET_FLOW_ERROR_NO_SUCH_INTERFACE;
@@ -137,6 +140,9 @@ vnet_flow_disable (vnet_main_t * vnm, u32 flow_index, u32 hw_if_index)
uword *p;
int rv;
+ if (f == 0)
+ return VNET_FLOW_ERROR_NO_SUCH_ENTRY;
+
if (!vnet_hw_interface_is_valid (vnm, hw_if_index))
return VNET_FLOW_ERROR_NO_SUCH_INTERFACE;