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-rwxr-xr-xerts/emulator/sys/win32/sys.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/erts/emulator/sys/win32/sys.c b/erts/emulator/sys/win32/sys.c
index 307ca4866f..133cfd3549 100755
--- a/erts/emulator/sys/win32/sys.c
+++ b/erts/emulator/sys/win32/sys.c
@@ -916,6 +916,8 @@ init_async_io(DriverData *dp, AsyncIo* aio, int use_threads)
if (aio->ov.hEvent == NULL)
return -1;
if (use_threads) {
+ OV_BUFFER_PTR(aio) = NULL;
+ OV_NUM_TO_READ(aio) = 0;
aio->ioAllowed = CreateAutoEvent(FALSE);
if (aio->ioAllowed == NULL)
return -1;
@@ -2330,6 +2332,7 @@ static void fd_stop(ErlDrvData data)
(void) driver_select(dp->port_num,
(ErlDrvEvent)dp->out.ov.hEvent,
ERL_DRV_WRITE, 0);
+ ASSERT(dp->out.flushEvent);
SetEvent(dp->out.flushEvent);
WaitForSingleObject(dp->out.flushReplyEvent, INFINITE);
}