diff options
Diffstat (limited to 'sys/dev/sio/sio.c')
| -rw-r--r-- | sys/dev/sio/sio.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/sys/dev/sio/sio.c b/sys/dev/sio/sio.c index bd63fa3..fdb91f9 100644 --- a/sys/dev/sio/sio.c +++ b/sys/dev/sio/sio.c @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * from: @(#)com.c 7.5 (Berkeley) 5/16/91 - * $Id: sio.c,v 1.24 1994/01/31 08:52:12 ache Exp $ + * $Id: sio.c,v 1.25 1994/01/31 19:07:59 ache Exp $ */ #include "sio.h" @@ -872,16 +872,15 @@ siointr(unit) possibly_more_intrs = FALSE; for (unit = 0; unit < NSIO; ++unit) { com = com_addr(unit); - if (com != NULL - && (inb(com->int_id_port) & IIR_IMASK) - != IIR_NOPEND) { + if (com != NULL) { /* * XXX call comintr1() instead of here from * comwakeup(). The interrupt edge problem * only exists for real interrupts. */ comintr1(com); - possibly_more_intrs = TRUE; + if ((inb(com->int_id_port) & IIR_IMASK) != IIR_NOPEND) + possibly_more_intrs = TRUE; } } } while (possibly_more_intrs); |
