diff options
Diffstat (limited to 'sys/kern/kern_conf.c')
| -rw-r--r-- | sys/kern/kern_conf.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/kern/kern_conf.c b/sys/kern/kern_conf.c index 1a3eaea33bfb..18ede10cbabe 100644 --- a/sys/kern/kern_conf.c +++ b/sys/kern/kern_conf.c @@ -428,6 +428,7 @@ prep_cdevsw(struct cdevsw *devsw) } if (devsw->d_flags & D_TTY) { + if (devsw->d_ioctl == NULL) devsw->d_ioctl = ttyioctl; if (devsw->d_read == NULL) devsw->d_read = ttyread; if (devsw->d_write == NULL) devsw->d_write = ttywrite; if (devsw->d_kqfilter == NULL) devsw->d_kqfilter = ttykqfilter; |