diff options
Diffstat (limited to 'sys/kern/kern_event.c')
| -rw-r--r-- | sys/kern/kern_event.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sys/kern/kern_event.c b/sys/kern/kern_event.c index 3aa4550..3419101 100644 --- a/sys/kern/kern_event.c +++ b/sys/kern/kern_event.c @@ -247,6 +247,7 @@ static struct { { &timer_filtops }, /* EVFILT_TIMER */ { &file_filtops }, /* EVFILT_NETDEV */ { &fs_filtops }, /* EVFILT_FS */ + { &null_filtops }, /* EVFILT_LIO */ }; /* @@ -633,6 +634,8 @@ kern_kevent(struct thread *td, int fd, int nchanges, int nevents, changes = keva; for (i = 0; i < n; i++) { kevp = &changes[i]; + if (!kevp->filter) + continue; kevp->flags &= ~EV_SYSFLAGS; error = kqueue_register(kq, kevp, td, 1); if (error) { @@ -1828,7 +1831,7 @@ knote_attach(struct knote *kn, struct kqueue *kq) } /* - * knote must already have been detatched using the f_detach method. + * knote must already have been detached using the f_detach method. * no lock need to be held, it is assumed that the KN_INFLUX flag is set * to prevent other removal. */ @@ -1850,7 +1853,8 @@ knote_drop(struct knote *kn, struct thread *td) else list = &kq->kq_knhash[KN_HASH(kn->kn_id, kq->kq_knhashmask)]; - SLIST_REMOVE(list, kn, knote, kn_link); + if (!SLIST_EMPTY(list)) + SLIST_REMOVE(list, kn, knote, kn_link); if (kn->kn_status & KN_QUEUED) knote_dequeue(kn); KQ_UNLOCK_FLUX(kq); |
