Return EINVAL for mknod/mknodat when dev is -1 (aka VNOVAL).

OK beck@ tedu@

diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c
index 4378e3d..1b01622 100644 (file)
--- a/sys/kern/vfs_syscalls.c
+++ b/sys/kern/vfs_syscalls.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: vfs_syscalls.c,v 1.260 2016/07/03 04:36:08 semarie Exp $      */
+/*     $OpenBSD: vfs_syscalls.c,v 1.261 2016/07/06 19:26:35 millert Exp $      */
 /*     $NetBSD: vfs_syscalls.c,v 1.71 1996/04/23 10:29:02 mycroft Exp $        */
 
 /*
@@ -1228,6 +1228,8 @@ domknodat(struct proc *p, int fd, const char *path, mode_t mode, dev_t dev)
                if (p->p_fd->fd_rdir)
                        return (EINVAL);
        }
+       if (dev == VNOVAL)
+               return (EINVAL);
        NDINITAT(&nd, CREATE, LOCKPARENT, UIO_USERSPACE, fd, path, p);
        nd.ni_pledge = PLEDGE_DPATH;
        if ((error = namei(&nd)) != 0)