net: Improve layout of 'info network'

[qemu.git] / aio.c

diff --git a/aio.c b/aio.c
index f164a478c5ed86dd09e2fe9052756cb049cb7b18..2f086557b6673fd1a6d8b7fe8ff322c9a53bbf18 100644 (file)
--- a/aio.c
+++ b/aio.c
@@ -113,7 +113,9 @@ void qemu_aio_flush(void)
         qemu_aio_wait();
 
         QLIST_FOREACH(node, &aio_handlers, node) {
-            ret |= node->io_flush(node->opaque);
+            if (node->io_flush) {
+                ret |= node->io_flush(node->opaque);
+            }
         }
     } while (qemu_bh_poll() || ret > 0);
 }