[PATCH] dev->priv to netdev_priv(dev), for drivers/net/wireless

Replacing accesses to dev->priv to netdev_priv(dev). The replacment
is safe when netdev_priv is used to access a private structure that is
right next to the net_device structure in memory. Cf
http://groups.google.com/group/comp.os.linux.development.system/browse_thread/thread/de19321bcd94dbb8/0d74a4adcd6177bd
This is the case when the net_device structure was allocated with
a call to alloc_netdev or one of its derivative.

Signed-off-by: Yoann Padioleau <padator@wanadoo.fr>
Cc: mcgrof@gmail.com
Cc: linux-wireless@vger.kernel.org
Cc: akpm@linux-foundation.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/arlan-proc.c b/drivers/net/wireless/arlan-proc.c
index 015abd9..c6e70db 100644
--- a/drivers/net/wireless/arlan-proc.c
+++ b/drivers/net/wireless/arlan-proc.c
@@ -435,7 +435,7 @@
 		goto final;
 	}
 	else
-		priva = arlan_device[devnum]->priv;
+		priva = netdev_priv(arlan_device[devnum]);
 
 	if (priva == NULL)
 	{
@@ -654,7 +654,7 @@
 		goto final;
 	}
 	else
-		priva = arlan_device[devnum]->priv;
+		priva = netdev_priv(arlan_device[devnum]);
 	if (priva == NULL)
 	{
 		printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
@@ -688,7 +688,7 @@
 		  goto final;
 	}
 	else
-		priva = arlan_device[devnum]->priv;
+		priva = netdev_priv(arlan_device[devnum]);
 	if (priva == NULL)
 	{
 		printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
@@ -716,7 +716,7 @@
 		  pos += sprintf(arlan_drive_info + pos, "No device found here \n");
 		  goto final;
 	} else
-		priva = arlan_device[devnum]->priv;
+		priva = netdev_priv(arlan_device[devnum]);
 	if (priva == NULL)
 	{
 		printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
@@ -745,7 +745,7 @@
 		goto final;
 	}
 	else
-		priva = arlan_device[devnum]->priv;
+		priva = netdev_priv(arlan_device[devnum]);
 	if (priva == NULL)
 	{
 		printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
@@ -780,7 +780,7 @@
 	}
 	else if (arlan_device[devnum] != NULL)
 	{
-		  priv = arlan_device[devnum]->priv;
+		  priv = netdev_priv(arlan_device[devnum]);
 
 		  arlan_command(arlan_device[devnum], ARLAN_COMMAND_CLEAN_AND_CONF);
 	}
@@ -805,7 +805,7 @@
 	}
 	else if (arlan_device[devnum] != NULL)
 	{
-		priv = arlan_device[devnum]->priv;
+		priv = netdev_priv(arlan_device[devnum]);
 		arlan_command(arlan_device[devnum], ARLAN_COMMAND_CLEAN_AND_RESET);
 
 	} else