p54: unify ieee80211 device registration

All three drivers (p54pci, p54usb and p54spi) are implementing the
same functionality three times. So, why not put it into the shared library?!
Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/p54/p54.h

@@ -165,6 +165,7 @@ int p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw);
 int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len);
 int p54_read_eeprom(struct ieee80211_hw *dev);
 struct ieee80211_hw *p54_init_common(size_t priv_data_len);
+int p54_register_common(struct ieee80211_hw *dev, struct device *pdev);
 void p54_free_common(struct ieee80211_hw *dev);
 
 #endif /* P54_H */

drivers/net/wireless/p54/p54common.c

@@ -2489,6 +2489,21 @@ struct ieee80211_hw *p54_init_common(size_t priv_data_len)
 }
 EXPORT_SYMBOL_GPL(p54_init_common);
 
+int p54_register_common(struct ieee80211_hw *dev, struct device *pdev)
+{
+	int err;
+
+	err = ieee80211_register_hw(dev);
+	if (err) {
+		dev_err(pdev, "Cannot register device (%d).\n", err);
+		return err;
+	}
+
+	dev_info(pdev, "is registered as '%s'\n", wiphy_name(dev->wiphy));
+	return 0;
+}
+EXPORT_SYMBOL_GPL(p54_register_common);
+
 void p54_free_common(struct ieee80211_hw *dev)
 {
 	struct p54_common *priv = dev->priv;

drivers/net/wireless/p54/p54pci.c

@@ -565,12 +565,9 @@ static int __devinit p54p_probe(struct pci_dev *pdev,
 	if (err)
 		goto err_free_common;
 
-	err = ieee80211_register_hw(dev);
-	if (err) {
-		printk(KERN_ERR "%s (p54pci): Cannot register netdevice\n",
-		       pci_name(pdev));
+	err = p54_register_common(dev, &pdev->dev);
+	if (err)
 		goto err_free_common;
-	}
 
 	return 0;
 

drivers/net/wireless/p54/p54spi.c

@@ -694,15 +694,10 @@ static int __devinit p54spi_probe(struct spi_device *spi)
 	if (ret)
 		goto err_free_common;
 
-	ret = ieee80211_register_hw(hw);
-	if (ret) {
-		dev_err(&priv->spi->dev, "unable to register "
-					 "mac80211 hw: %d", ret);
+	ret = p54_register_common(hw, &priv->spi->dev);
+	if (ret)
 		goto err_free_common;
-	}
 
-	dev_info(&priv->spi->dev, "device is bound to %s\n",
-		 wiphy_name(hw->wiphy));
 	return 0;
 
 err_free_common:

drivers/net/wireless/p54/p54usb.c

@@ -976,11 +976,9 @@ static int __devinit p54u_probe(struct usb_interface *intf,
 	if (err)
 		goto err_free_dev;
 
-	err = ieee80211_register_hw(dev);
-	if (err) {
-		dev_err(&udev->dev, "(p54usb) Cannot register netdevice\n");
+	err = p54_register_common(dev, &udev->dev);
+	if (err)
 		goto err_free_dev;
-	}
 
 	return 0;