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Takashi Yano bf91542004 Cygwin: dsp: Fix hang on close() if another thread calls write().
fhandler_dev_dsp (OSS) has a problem that waitforallsent(), which is
called from close(), falls into infinite loop if another thread calls
write() accidentally after close(). This patch fixes the issue.

Reviewed-by: Corinna Vinschen <corinna@vinschen.de>
Signed-off-by: Takashi Yano <takashi.yano@nifty.ne.jp>
2023-01-26 02:04:18 +09:00
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