btrfs: ulist: rename ulist_fini to ulist_release

Change the name so it matches the naming we already use eg. for
btrfs_path.

Suggested-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/ulist.h b/fs/btrfs/ulist.h
index 1a41304..53c9136 100644
--- a/fs/btrfs/ulist.h
+++ b/fs/btrfs/ulist.h
@@ -44,7 +44,7 @@ struct ulist {
 };
 
 void ulist_init(struct ulist *ulist);
-void ulist_fini(struct ulist *ulist);
+void ulist_release(struct ulist *ulist);
 void ulist_reinit(struct ulist *ulist);
 struct ulist *ulist_alloc(gfp_t gfp_mask);
 void ulist_free(struct ulist *ulist);