mlxsw: spectrum: remove redundant check if err is zero

There is an earlier check and return if err is non-zero, so
the check to see if it is zero is redundant in every iteration
of the loop and hence the check can be removed.
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Acked-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlxsw/spectrum.c

@@ -1664,7 +1664,7 @@ static void __mlxsw_sp_port_get_stats(struct net_device *dev,
 		return;
 	mlxsw_sp_port_get_stats_raw(dev, grp, prio, ppcnt_pl);
 	for (i = 0; i < len; i++)
-		data[data_index + i] = !err ? hw_stats[i].getter(ppcnt_pl) : 0;
+		data[data_index + i] = hw_stats[i].getter(ppcnt_pl);
 }
 
 static void mlxsw_sp_port_get_stats(struct net_device *dev,