Unlock mutex before jumping off from the critical region instead of
testing if locked.
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parent
6bc7e18094
commit
29f1bcd8e2
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@ -1,4 +1,4 @@
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/* $NetBSD: tty_pty.c,v 1.53 2000/11/20 06:36:02 veego Exp $ */
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/* $NetBSD: tty_pty.c,v 1.54 2000/11/21 03:53:27 enami Exp $ */
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/*
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* Copyright (c) 1982, 1986, 1989, 1993
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@ -135,10 +135,6 @@ check_pty(dev)
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if (minor(dev) >= maxptys) {
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limit_reached:
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tablefull("pty", "increase kern.maxptys");
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#if defined(LOCKDEBUG)
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if (simple_lock_held(&pt_softc_mutex))
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#endif
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simple_unlock(&pt_softc_mutex);
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return (ENXIO);
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}
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@ -162,7 +158,7 @@ check_pty(dev)
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simple_lock(&pt_softc_mutex);
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if (maxptys == npty) {
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/* we hold the mutex here */
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simple_unlock(&pt_softc_mutex);
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goto limit_reached;
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}
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} while(newnpty > maxptys);
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