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-rw-r--r--aio.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/aio.c b/aio.c
index f164a478c5..2f086557b6 100644
--- 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);
}