diff options
| author | Can Erkin Acar <canacar@cvs.openbsd.org> | 2009-09-21 16:33:43 +0000 |
|---|---|---|
| committer | Can Erkin Acar <canacar@cvs.openbsd.org> | 2009-09-21 16:33:43 +0000 |
| commit | 7dfcbed9b6b1886396c0215dfa0469640833e1a5 (patch) | |
| tree | 2e1682d2683c687b8f926950f70db607a292f50c /sys | |
| parent | a0fa551cc35a9e319156ba2edb76ba14c590e83b (diff) | |
Properly reference count bpf descriptors when using kqueue.
Reported and fix tested by weerd@, ok claudio@
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/net/bpf.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/net/bpf.c b/sys/net/bpf.c index 5caa8b9473a..f6f7e6c7122 100644 --- a/sys/net/bpf.c +++ b/sys/net/bpf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: bpf.c,v 1.72 2009/09/07 23:47:51 deraadt Exp $ */ +/* $OpenBSD: bpf.c,v 1.73 2009/09/21 16:33:42 canacar Exp $ */ /* $NetBSD: bpf.c,v 1.33 1997/02/21 23:59:35 thorpej Exp $ */ /* @@ -1070,6 +1070,7 @@ bpfkqfilter(dev_t dev, struct knote *kn) kn->kn_hook = (caddr_t)((u_long)dev); s = splnet(); + D_GET(d); SLIST_INSERT_HEAD(klist, kn, kn_selnext); splx(s); @@ -1086,6 +1087,7 @@ filt_bpfrdetach(struct knote *kn) d = bpfilter_lookup(minor(dev)); s = splnet(); SLIST_REMOVE(&d->bd_sel.si_note, kn, knote, kn_selnext); + D_PUT(d); splx(s); } |