rem: struct bootfs_vnode *v = _v;
add: struct bootfs_vnode *vnode = _v;
context: bootfs_open(fs_cookie _fs, fs_vnode _v, file_cookie *_cookie, stream_type st, int oflags){	struct bootfs *fs = _fs;	struct bootfs_vnode *v = _v;	struct bootfs_cookie *cookie;	int err = 0;	int start = 0;	TRACE(("bootfs_open: vnode 0x%x, stream_type %d, oflags 0x%x\n", v, st, oflags));	if(st != STREAM_TYPE_ANY && st != v->stream.type) {		err = ERR_VFS_WRONG_STREAM_TYPE;		goto err;	}	cookie = kmalloc(sizeof(struct bootfs_cookie));	if (cookie == NULL) {		err = ENOMEM;		goto err;	}	mutex_lock(&fs->lock);	cookie->s = &v->stream;	switch(v->stream.type) {		case STREAM_TYPE_DIR:			cookie->u.dir.ptr = v->stream.u.dir.dir_head;			break;		case STREAM_TYPE_FILE:			cookie->u.file.pos = 0;			break;		default:			err = ERR_VFS_WRONG_STREAM_TYPE;			kfree(cookie);	}	*_cookie = cookie;err1:	mutex_unlock(&fs->lock);err:	return err;}