Staging: ft1000-usb: use netdev_warn

Fix coding style issue by replacing printk with netdev_warn.
Signed-off-by: Anders Darander <anders.darander@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ft1000/ft1000-usb/ft1000_proc.c

@@ -203,7 +203,7 @@ int ft1000_init_proc(struct net_device *dev)
 
 	info->ft1000_proc_dir = proc_mkdir(FT1000_PROC_DIR, FTNET_PROC);
 	if (info->ft1000_proc_dir == NULL) {
-		printk(KERN_WARNING "Unable to create %s dir.\n",
+		netdev_warn(dev, "Unable to create %s dir.\n",
 			FT1000_PROC_DIR);
 		goto fail;
 	}
@@ -213,7 +213,7 @@ int ft1000_init_proc(struct net_device *dev)
 				 &ft1000_proc_fops, dev);
 
 	if (!ft1000_proc_file) {
-		printk(KERN_WARNING "Unable to create /proc entry.\n");
+		netdev_warn(dev, "Unable to create /proc entry.\n");
 		goto fail_entry;
 	}