Update mem.c
rt_realloc may cause <lfree> change, if we don't change <lfree> timely, it may cause memory leakage
@@ -490,6 +490,12 @@ void *rt_realloc(void *rmem, rt_size_t newsize)
((struct heap_mem *)&heap_ptr[mem2->next])->prev = ptr2;
}
+ if (mem2 < lfree)
+ {
+ /* the splited struct is now the lowest */
+ lfree = mem2;
+ }
+
plug_holes(mem2);
rt_sem_release(&heap_sem);
