mlxsw: spectrum_router: Fix rif counter freeing routine
During rif counter freeing the counter index can be invalid. Add check
of validity before freeing the counter.
Fixes: e0c0afd8aa4e ("mlxsw: spectrum: Support for counters on router interfaces")
Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 33cec1c..9f89c41 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -206,6 +206,9 @@
{
unsigned int *p_counter_index;
+ if (!mlxsw_sp_rif_counter_valid_get(rif, dir))
+ return;
+
p_counter_index = mlxsw_sp_rif_p_counter_get(rif, dir);
if (WARN_ON(!p_counter_index))
return;
