diff options
| author | Kenneth R Westerback <krw@cvs.openbsd.org> | 2004-06-12 22:22:27 +0000 |
|---|---|---|
| committer | Kenneth R Westerback <krw@cvs.openbsd.org> | 2004-06-12 22:22:27 +0000 |
| commit | cbc7a67ab6def6348886a4bf10cbab4586d25454 (patch) | |
| tree | aa20a257034df5239b154a67206407fe2b33d97f /sys/dev | |
| parent | 8b98d7d21cb635eec8eb4c1598ad6f2dab8f39ad (diff) | |
Add check for bp->b_bcount in siop_minphys() as other drivers have.
ok mickey@
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/ic/siop_common.c | 5 | ||||
| -rw-r--r-- | sys/dev/ic/siopvar_common.h | 3 |
2 files changed, 6 insertions, 2 deletions
diff --git a/sys/dev/ic/siop_common.c b/sys/dev/ic/siop_common.c index df53eaab69a..8e565358e18 100644 --- a/sys/dev/ic/siop_common.c +++ b/sys/dev/ic/siop_common.c @@ -1,4 +1,4 @@ -/* $OpenBSD: siop_common.c,v 1.19 2004/01/15 17:51:42 miod Exp $ */ +/* $OpenBSD: siop_common.c,v 1.20 2004/06/12 22:22:26 krw Exp $ */ /* $NetBSD: siop_common.c,v 1.31 2002/09/27 15:37:18 provos Exp $ */ /* @@ -706,6 +706,9 @@ void siop_minphys(bp) struct buf *bp; { + if (bp->b_bcount > SIOP_MAXFER) + bp->b_bcount = SIOP_MAXFER; + minphys(bp); } diff --git a/sys/dev/ic/siopvar_common.h b/sys/dev/ic/siopvar_common.h index 751a4ee6e3e..3db7515c18c 100644 --- a/sys/dev/ic/siopvar_common.h +++ b/sys/dev/ic/siopvar_common.h @@ -1,4 +1,4 @@ -/* $OpenBSD: siopvar_common.h,v 1.18 2003/11/16 20:30:06 avsm Exp $ */ +/* $OpenBSD: siopvar_common.h,v 1.19 2004/06/12 22:22:26 krw Exp $ */ /* $NetBSD: siopvar_common.h,v 1.22 2002/10/23 02:32:36 christos Exp $ */ /* @@ -46,6 +46,7 @@ typedef struct scr_table { /* Number of scatter/gather entries */ /* XXX Ensure alignment of siop_xfer's. */ #define SIOP_NSG 17 /* XXX (MAXPHYS/NBPG + 1) */ +#define SIOP_MAXFER ((SIOP_NSG - 1) * PAGE_SIZE) /* * This structure interfaces the SCRIPT with the driver; it describes a full |