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Don't mess with device if it was opened while we napped.

This commit is contained in:
pk 1994-11-03 18:57:33 +00:00
parent b3d26ef983
commit edb1bc6eae
1 changed files with 10 additions and 3 deletions
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13
sys/arch/sparc/dev/zs.c
View File

@ -42,7 +42,7 @@
* @(#)zs.c 8.1 (Berkeley) 7/19/93
*
* from: Header: zs.c,v 1.30 93/07/19 23:44:42 torek Exp
* $Id: zs.c,v 1.16 1994/11/02 04:54:19 deraadt Exp $
* $Id: zs.c,v 1.17 1994/11/03 18:57:33 pk Exp $
*/
/*
@ -605,8 +605,15 @@ zsopen(dev, flags, mode, p)
break;
tp->t_state |= TS_WOPEN;
if (error = ttysleep(tp, (caddr_t)&tp->t_rawq, TTIPRI | PCATCH,
ttopen, 0))
break;
ttopen, 0)) {
if (!(tp->t_state & TS_ISOPEN)) {
zs_modem(cs, 0);
tp->t_state &= ~TS_WOPEN;
ttwakeup(tp);
}
splx(s);
return error;
}
}
splx(s);
if (error == 0)