Bug fix: Cannot call free from null task (it might need to wait). Call sched_free instead

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@70 42af7a65-404d-4744-a932-0658087f49c3

lib/lib_init.c

@@ -207,7 +207,7 @@ void lib_releaselist(FAR struct streamlist *list)
                /* Release the IO buffer */
                if (&list->sl_streams[i].fs_bufstart)
                  {
-                   free(list->sl_streams[i].fs_bufstart);
+                   sched_free(list->sl_streams[i].fs_bufstart);
                  }
              }
 #endif