diff -r efbd59642577 -r 49a284f61e8c ucx/cx/linked_list.h
--- a/ucx/cx/linked_list.h	Fri Apr 21 21:25:32 2023 +0200
+++ b/ucx/cx/linked_list.h	Sun May 07 11:53:10 2023 +0200
@@ -118,9 +118,9 @@
  * @param loc_data the location of the \c data pointer within your node struct
  * @param cmp_func a compare function to compare \p elem against the node data
  * @param elem a pointer to the element to find
- * @return the index of the element or a past-one index if the element could not be found
+ * @return the index of the element or a negative value if it could not be found
  */
-size_t cx_linked_list_find(
+ssize_t cx_linked_list_find(
         void const *start,
         ptrdiff_t loc_advance,
         ptrdiff_t loc_data,