diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2009-01-25 13:49:50 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2009-01-25 13:49:50 +0000 |
| commit | b5e555d74e0afb8034aeadb0592d030b4860556a (patch) | |
| tree | b10ea1b64c05978ab91f6919bb5e791c3bff58a2 /sys/arch/hp300 | |
| parent | 3769d838e5e045d6d1a4233d317411f381d74f9f (diff) | |
Behave correctly in interrupt handlers if no tty has been allocated yet
(this was supposed to have been fixed in r1.25, but there was still a
missing check).
Diffstat (limited to 'sys/arch/hp300')
| -rw-r--r-- | sys/arch/hp300/dev/dca.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/sys/arch/hp300/dev/dca.c b/sys/arch/hp300/dev/dca.c index f44ef867920..0c5a2891b77 100644 --- a/sys/arch/hp300/dev/dca.c +++ b/sys/arch/hp300/dev/dca.c @@ -1,4 +1,4 @@ -/* $OpenBSD: dca.c,v 1.33 2008/01/23 16:37:56 jsing Exp $ */ +/* $OpenBSD: dca.c,v 1.34 2009/01/25 13:49:49 miod Exp $ */ /* $NetBSD: dca.c,v 1.35 1997/05/05 20:58:18 thorpej Exp $ */ /* @@ -568,8 +568,9 @@ dcaintr(arg) fifoin[fifocnt]++; #endif } - if (!iflowdone && (tp->t_cflag&CRTS_IFLOW) && - tp->t_rawq.c_cc > TTYHOG/2) { + if (iflowdone == 0 && tp != NULL && + (tp->t_cflag & CRTS_IFLOW) && + tp->t_rawq.c_cc > (TTYHOG / 2)) { dca->dca_mcr &= ~MCR_RTS; iflowdone = 1; } |