driver model: make driverfs an implicit initcall.

drivers/base/core.c

@@ -318,18 +318,6 @@ void device_unregister(struct device * dev)
 	put_device(dev);
 }
 
-static int __init device_init(void)
-{
-	int error;
-
-	error = init_driverfs_fs();
-	if (error)
-		panic("DEV: could not initialize driverfs");
-	return 0;
-}
-
-core_initcall(device_init);
-
 EXPORT_SYMBOL(device_register);
 EXPORT_SYMBOL(device_unregister);
 EXPORT_SYMBOL(get_device);

fs/driverfs/inode.c

@@ -509,11 +509,13 @@ static void put_mount(void)
 	DBG("driverfs: mount_count = %d\n",mount_count);
 }
 
-int __init init_driverfs_fs(void)
+static int __init driverfs_init(void)
 {
 	return register_filesystem(&driverfs_fs_type);
 }
 
+core_initcall(driverfs_init);
+
 static struct dentry * get_dentry(struct dentry * parent, const char * name)
 {
 	struct qstr qstr;

include/linux/driverfs_fs.h

@@ -65,6 +65,4 @@ driverfs_create_symlink(struct driver_dir_entry * parent,
 extern void
 driverfs_remove_file(struct driver_dir_entry *, const char * name);
 
-extern int init_driverfs_fs(void);
-
 #endif /* _DDFS_H_ */