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Reinit a pslist entry before inserting it to a pslist again 

Fix PR kern/51984
Tested by nonaka@
This commit is contained in:
ozaki-r 2017-02-20 03:08:38 +00:00
parent 6a2fda314b
commit b7100b390b
1 changed files with 6 additions and 3 deletions
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9
sys/net/bpf.c
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@ -1,4 +1,4 @@
/* $NetBSD: bpf.c,v 1.215 2017/02/19 13:58:42 christos Exp $ */
/* $NetBSD: bpf.c,v 1.216 2017/02/20 03:08:38 ozaki-r Exp $ */
/*
* Copyright (c) 1990, 1991, 1993
@ -39,7 +39,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: bpf.c,v 1.215 2017/02/19 13:58:42 christos Exp $");
__KERNEL_RCSID(0, "$NetBSD: bpf.c,v 1.216 2017/02/20 03:08:38 ozaki-r Exp $");
#if defined(_KERNEL_OPT)
#include "opt_bpf.h"
@ -1380,11 +1380,13 @@ bpf_setif(struct bpf_d *d, struct ifreq *ifr)
}
mutex_enter(d->bd_mtx);
if (bp != d->bd_bif) {
if (d->bd_bif)
if (d->bd_bif) {
/*
* Detach if attached to something else.
*/
bpf_detachd(d);
BPFIF_DLIST_ENTRY_INIT(d);
}
bpf_attachd(d, bp);
}
@ -2239,6 +2241,7 @@ bpf_setdlt(struct bpf_d *d, u_int dlt)
return EINVAL;
opromisc = d->bd_promisc;
bpf_detachd(d);
BPFIF_DLIST_ENTRY_INIT(d);
bpf_attachd(d, bp);
reset_d(d);
if (opromisc) {