Index: icalspanlist.c
===================================================================
--- icalspanlist.c      (revision 928)
+++ icalspanlist.c      (working copy)
@@ -175,6 +175,7 @@
        if ((freetime=(struct icaltime_span *)
             malloc(sizeof(struct icaltime_span))) == 0){
            icalerror_set_errno(ICAL_NEWFAILED_ERROR);
+            icalspanlist_free(sl);
            return 0;
            }

@@ -207,6 +208,7 @@
             if ((freetime=(struct icaltime_span *)
                  malloc(sizeof(struct icaltime_span))) == 0){
                 icalerror_set_errno(ICAL_NEWFAILED_ERROR);
+                 icalspanlist_free(sl);
                 return 0;
             }

@@ -541,6 +543,7 @@

     if (s == 0) {
       icalerror_set_errno(ICAL_NEWFAILED_ERROR);
+      icalspanlist_free(sl);
       return 0;
     }