net: arc: Make arc_emac_remove() return void

The function returns zero unconditionally. Change it to return void instead
which simplifies its callers as error handing becomes unnecessary.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/arc/emac.h

@@ -220,6 +220,6 @@ static inline void arc_reg_clr(struct arc_emac_priv *priv, int reg, int mask)
 int arc_mdio_probe(struct arc_emac_priv *priv);
 int arc_mdio_remove(struct arc_emac_priv *priv);
 int arc_emac_probe(struct net_device *ndev, int interface);
-int arc_emac_remove(struct net_device *ndev);
+void arc_emac_remove(struct net_device *ndev);
 
 #endif /* ARC_EMAC_H */

drivers/net/ethernet/arc/emac_arc.c

@@ -61,11 +61,11 @@ static int emac_arc_probe(struct platform_device *pdev)
 static int emac_arc_remove(struct platform_device *pdev)
 {
 	struct net_device *ndev = platform_get_drvdata(pdev);
-	int err;
 
-	err = arc_emac_remove(ndev);
+	arc_emac_remove(ndev);
 	free_netdev(ndev);
-	return err;
+
+	return 0;
 }
 
 static const struct of_device_id emac_arc_dt_ids[] = {

drivers/net/ethernet/arc/emac_main.c

@@ -1008,7 +1008,7 @@ int arc_emac_probe(struct net_device *ndev, int interface)
 }
 EXPORT_SYMBOL_GPL(arc_emac_probe);
 
-int arc_emac_remove(struct net_device *ndev)
+void arc_emac_remove(struct net_device *ndev)
 {
 	struct arc_emac_priv *priv = netdev_priv(ndev);
 
@@ -1019,8 +1019,6 @@ int arc_emac_remove(struct net_device *ndev)
 
 	if (!IS_ERR(priv->clk))
 		clk_disable_unprepare(priv->clk);
-
-	return 0;
 }
 EXPORT_SYMBOL_GPL(arc_emac_remove);
 

drivers/net/ethernet/arc/emac_rockchip.c

@@ -248,9 +248,8 @@ static int emac_rockchip_remove(struct platform_device *pdev)
 {
 	struct net_device *ndev = platform_get_drvdata(pdev);
 	struct rockchip_priv_data *priv = netdev_priv(ndev);
-	int err;
 
-	err = arc_emac_remove(ndev);
+	arc_emac_remove(ndev);
 
 	clk_disable_unprepare(priv->refclk);
 
@@ -261,7 +260,7 @@ static int emac_rockchip_remove(struct platform_device *pdev)
 		clk_disable_unprepare(priv->macclk);
 
 	free_netdev(ndev);
-	return err;
+	return 0;
 }
 
 static struct platform_driver emac_rockchip_driver = {