mlxsw: spectrum_span: Reduce nesting in mlxsw_sp_span_entry_configure()

Use early return to avoid unnecessary nesting.
Signed-off-by: NAmit Cohen <amitc@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Reviewed-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

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

@@ -622,18 +622,27 @@ mlxsw_sp_span_entry_configure(struct mlxsw_sp *mlxsw_sp,
 			      struct mlxsw_sp_span_entry *span_entry,
 			      struct mlxsw_sp_span_parms sparms)
 {
-	if (sparms.dest_port) {
-		if (sparms.dest_port->mlxsw_sp != mlxsw_sp) {
-			netdev_err(span_entry->to_dev, "Cannot mirror to %s, which belongs to a different mlxsw instance",
-				   sparms.dest_port->dev->name);
-			sparms.dest_port = NULL;
-		} else if (span_entry->ops->configure(span_entry, sparms)) {
-			netdev_err(span_entry->to_dev, "Failed to offload mirror to %s",
-				   sparms.dest_port->dev->name);
-			sparms.dest_port = NULL;
-		}
+	int err;
+
+	if (!sparms.dest_port)
+		goto set_parms;
+
+	if (sparms.dest_port->mlxsw_sp != mlxsw_sp) {
+		netdev_err(span_entry->to_dev, "Cannot mirror to %s, which belongs to a different mlxsw instance",
+			   sparms.dest_port->dev->name);
+		sparms.dest_port = NULL;
+		goto set_parms;
+	}
+
+	err = span_entry->ops->configure(span_entry, sparms);
+	if (err) {
+		netdev_err(span_entry->to_dev, "Failed to offload mirror to %s",
+			   sparms.dest_port->dev->name);
+		sparms.dest_port = NULL;
+		goto set_parms;
 	}
 
+set_parms:
 	span_entry->parms = sparms;
 }