net: w5100: Make w5100_remove() return void

Up to now w5100_remove() returns zero unconditionally. Make it return
void instead which makes it easier to see in the callers that there is
no error to handle.

Also the return value of platform and spi remove callbacks is ignored
anyway.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

drivers/net/ethernet/wiznet/w5100-spi.c

@@ -463,7 +463,9 @@ static int w5100_spi_probe(struct spi_device *spi)
 
 static int w5100_spi_remove(struct spi_device *spi)
 {
-	return w5100_remove(&spi->dev);
+	w5100_remove(&spi->dev);
+
+	return 0;
 }
 
 static const struct spi_device_id w5100_spi_ids[] = {

drivers/net/ethernet/wiznet/w5100.c

@@ -1064,7 +1064,9 @@ static int w5100_mmio_probe(struct platform_device *pdev)
 
 static int w5100_mmio_remove(struct platform_device *pdev)
 {
-	return w5100_remove(&pdev->dev);
+	w5100_remove(&pdev->dev);
+
+	return 0
 }
 
 void *w5100_ops_priv(const struct net_device *ndev)
@@ -1210,7 +1212,7 @@ int w5100_probe(struct device *dev, const struct w5100_ops *ops,
 }
 EXPORT_SYMBOL_GPL(w5100_probe);
 
-int w5100_remove(struct device *dev)
+void w5100_remove(struct device *dev)
 {
 	struct net_device *ndev = dev_get_drvdata(dev);
 	struct w5100_priv *priv = netdev_priv(ndev);
@@ -1226,7 +1228,6 @@ int w5100_remove(struct device *dev)
 
 	unregister_netdev(ndev);
 	free_netdev(ndev);
-	return 0;
 }
 EXPORT_SYMBOL_GPL(w5100_remove);
 

drivers/net/ethernet/wiznet/w5100.h

@@ -31,6 +31,6 @@ void *w5100_ops_priv(const struct net_device *ndev);
 int w5100_probe(struct device *dev, const struct w5100_ops *ops,
 		int sizeof_ops_priv, const void *mac_addr, int irq,
 		int link_gpio);
-int w5100_remove(struct device *dev);
+void w5100_remove(struct device *dev);
 
 extern const struct dev_pm_ops w5100_pm_ops;