rc/utils_llist.c: Fix a bug in llist_prepend.

Copy the element to the tail if it's the first element.

diff --git a/src/utils_llist.c b/src/utils_llist.c
index d8694e3..d5db9dc 100644 (file)
--- a/src/utils_llist.c
+++ b/src/utils_llist.c
@@ -110,6 +110,9 @@ void llist_prepend (llist_t *l, llentry_t *e)
 {
        e->next = l->head;
        l->head = e;
+
+       if (l->tail == NULL)
+               l->tail = e;
 }
 
 void llist_remove (llist_t *l, llentry_t *e)