diff options
Diffstat (limited to 'sys/kern/sysv_shm.c')
-rw-r--r-- | sys/kern/sysv_shm.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/kern/sysv_shm.c b/sys/kern/sysv_shm.c index c9e1221..1b35285 100644 --- a/sys/kern/sysv_shm.c +++ b/sys/kern/sysv_shm.c @@ -1,4 +1,4 @@ -/* $Id: sysv_shm.c,v 1.10 1995/10/21 19:50:00 bde Exp $ */ +/* $Id: sysv_shm.c,v 1.11 1995/11/30 07:58:50 julian Exp $ */ /* $NetBSD: sysv_shm.c,v 1.23 1994/07/04 23:25:12 glass Exp $ */ /* @@ -179,6 +179,8 @@ shmdt(p, uap, retval) int i; shmmap_s = (struct shmmap_state *)p->p_vmspace->vm_shm; + if (shmmap_s == NULL) + return EINVAL; for (i = 0; i < shminfo.shmseg; i++, shmmap_s++) if (shmmap_s->shmid != -1 && shmmap_s->va == (vm_offset_t)uap->shmaddr) |