--- libev/ev_linuxaio.c	2019/06/26 00:11:24	1.35
+++ libev/ev_linuxaio.c	2019/06/26 07:01:14	1.36
@@ -301,7 +301,7 @@
     {
       evsys_io_cancel (linuxaio_ctx, &iocb->io, (struct io_event *)0);
       /* on relevant kernels, io_cancel fails with EINPROGRES if everything is fine */
-      assert (("libev: linuxaio unexpected io_cancel failed", errno != EINPROGRESS));
+      assert (("libev: linuxaio unexpected io_cancel failed", errno == EINPROGRESS));
     }
 
   if (nev)