diff options
Diffstat (limited to 'sys/kern/subr_autoconf.c')
| -rw-r--r-- | sys/kern/subr_autoconf.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/sys/kern/subr_autoconf.c b/sys/kern/subr_autoconf.c index 49838565ae5..04378697eaa 100644 --- a/sys/kern/subr_autoconf.c +++ b/sys/kern/subr_autoconf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: subr_autoconf.c,v 1.84 2015/01/22 01:19:51 dlg Exp $ */ +/* $OpenBSD: subr_autoconf.c,v 1.85 2015/02/09 12:37:18 dlg Exp $ */ /* $NetBSD: subr_autoconf.c,v 1.21 1996/04/04 06:06:18 cgd Exp $ */ /* @@ -922,7 +922,7 @@ device_mpath(void) void device_ref(struct device *dv) { - dv->dv_ref++; + atomic_inc_int(&dv->dv_ref); } /* @@ -937,8 +937,7 @@ device_unref(struct device *dv) { struct cfattach *ca; - dv->dv_ref--; - if (dv->dv_ref == 0) { + if (atomic_dec_int_nv(&dv->dv_ref) == 0) { ca = dv->dv_cfdata->cf_attach; free(dv, M_DEVBUF, ca->ca_devsize); } |