Index: uspace/srv/fs/fat/fat_idx.c
===================================================================
--- uspace/srv/fs/fat/fat_idx.c	(revision 0055cfda855ba8e5cf246f911b748a2fae9d6793)
+++ uspace/srv/fs/fat/fat_idx.c	(revision 393bef130ee92b6dab40dea6285691c060527844)
@@ -164,4 +164,6 @@
 		assert((keys == 1) || (keys == 3));
 	}
+
+	return 0;
 }
 
@@ -219,4 +221,6 @@
 		assert((keys == 1) || (keys == 2));
 	}
+
+	return 0;
 }