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We really need a ring buffer for every unit. 

Eliminate extraneous ttyalloc() calls.
This commit is contained in:
pk 1996-05-29 21:45:28 +00:00
parent 77323d42d7
commit f9f5f23ee3
1 changed files with 5 additions and 5 deletions
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10
sys/arch/sparc/dev/zs.c
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@ -1,4 +1,4 @@
/* $NetBSD: zs.c,v 1.39 1996/05/29 01:58:09 mrg Exp $ */
/* $NetBSD: zs.c,v 1.40 1996/05/29 21:45:28 pk Exp $ */
/*
* Copyright (c) 1992, 1993
@ -288,7 +288,6 @@ zsattach(parent, dev, aux)
sc->sc_zs = addr;
unit = zs * 2;
cs = sc->sc_cs;
cs->cs_ttyp = tp = ttymalloc();
/* link into interrupt list with order (A,B) (B=A+1) */
cs[0].cs_next = &cs[1];
@ -300,9 +299,8 @@ zsattach(parent, dev, aux)
cs->cs_unit = unit;
cs->cs_speed = zs_getspeed(&addr->zs_chan[ZS_CHAN_A]);
cs->cs_zc = &addr->zs_chan[ZS_CHAN_A];
tp->t_dev = makedev(ZSMAJOR, unit);
if ((ctp = zs_checkcons(sc, unit, cs)) != NULL)
cs->cs_ttyp = tp = ctp;
tp = ctp;
else {
tp = ttymalloc();
tp->t_dev = makedev(ZSMAJOR, unit);
@ -328,10 +326,12 @@ zsattach(parent, dev, aux)
tty_attach(tp);
ringsize = 4096;
}
cs->cs_ringmask = ringsize - 1;
cs->cs_rbuf = malloc((u_long)ringsize * sizeof(*cs->cs_rbuf),
M_DEVBUF, M_NOWAIT);
unit++;
cs++;
cs->cs_ttyp = tp = ttymalloc();
cs->cs_unit = unit;
cs->cs_speed = zs_getspeed(&addr->zs_chan[ZS_CHAN_B]);
cs->cs_zc = &addr->zs_chan[ZS_CHAN_B];