diff options
| -rw-r--r-- | sys/src/9/port/segment.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/src/9/port/segment.c b/sys/src/9/port/segment.c index 17efff622..2b45af88d 100644 --- a/sys/src/9/port/segment.c +++ b/sys/src/9/port/segment.c @@ -610,7 +610,10 @@ segattach(Proc *p, ulong attr, char *name, uintptr va, uintptr len) } } + /* round up va+len */ + len += va & (BY2PG-1); len = PGROUND(len); + if(len == 0) error(Ebadarg); |