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* src/posixos.c (osync_clear): Don't close invalid FDs.
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@ -668,7 +668,7 @@ osync_parse_mutex (const char *mutex)
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void
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osync_clear ()
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{
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if (osync_handle)
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if (osync_handle >= 0)
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{
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close (osync_handle);
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osync_handle = -1;
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