diff options
Diffstat (limited to 'sys/arch/powerpc')
| -rw-r--r-- | sys/arch/powerpc/powerpc/disksubr.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sys/arch/powerpc/powerpc/disksubr.c b/sys/arch/powerpc/powerpc/disksubr.c index 227df3182b4..f81d4f2336d 100644 --- a/sys/arch/powerpc/powerpc/disksubr.c +++ b/sys/arch/powerpc/powerpc/disksubr.c @@ -1,4 +1,4 @@ -/* $OpenBSD: disksubr.c,v 1.11 1998/10/03 21:18:56 millert Exp $ */ +/* $OpenBSD: disksubr.c,v 1.12 1999/01/08 04:29:09 millert Exp $ */ /* $NetBSD: disksubr.c,v 1.21 1996/05/03 19:42:03 christos Exp $ */ /* @@ -498,6 +498,12 @@ bounds_check_with_label(bp, lp, osdep, wlabel) LABELSECTOR; int sz = howmany(bp->b_bcount, DEV_BSIZE); + /* avoid division by zero */ + if (lp->d_secpercyl == 0) { + bp->b_error = EINVAL; + goto bad; + } + if (bp->b_blkno + sz > blockpersec(p->p_size, lp)) { sz = blockpersec(p->p_size, lp) - bp->b_blkno; if (sz == 0) { |