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Call ttstart() with tty_lock held.

This commit is contained in:
ad 2007-11-20 00:45:23 +00:00
parent ce2527b4f4
commit bf2e3dcbb6
1 changed files with 4 additions and 4 deletions
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8
sys/kern/tty.c
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@ -1,4 +1,4 @@
/* $NetBSD: tty.c,v 1.204 2007/11/19 19:53:48 ad Exp $ */
/* $NetBSD: tty.c,v 1.205 2007/11/20 00:45:23 ad Exp $ */
/*-
* Copyright (c) 1982, 1986, 1990, 1991, 1993
@ -37,7 +37,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: tty.c,v 1.204 2007/11/19 19:53:48 ad Exp $");
__KERNEL_RCSID(0, "$NetBSD: tty.c,v 1.205 2007/11/20 00:45:23 ad Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -1989,8 +1989,8 @@ ttwrite(struct tty *tp, struct uio *uio, int flag)
tp->t_outq.c_cc > hiwat)
break;
}
mutex_spin_exit(&tty_lock);
ttstart(tp);
mutex_spin_exit(&tty_lock);
}
out:
@ -2012,8 +2012,8 @@ ttwrite(struct tty *tp, struct uio *uio, int flag)
hiwat = tp->t_outq.c_cc - 1;
ovhiwat:
ttstart(tp);
mutex_spin_enter(&tty_lock);
ttstart(tp);
/*
* This can only occur if FLUSHO is set in t_lflag,
* or if ttstart/oproc is synchronous (or very fast).