back out refcnt for dv_ref, there's too many hand crafted devices all

over the tree.

much encouragement from l2k15

1 files changed, 4 insertions, 4 deletions

diff --git a/sys/kern/subr_autoconf.c b/sys/kern/subr_autoconf.c
index 3e81f93c94e..bb6041b34b3 100644
--- a/sys/kern/subr_autoconf.c
+++ b/sys/kern/subr_autoconf.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: subr_autoconf.c,v 1.88 2015/09/11 19:14:51 dlg Exp $	*/
+/*	$OpenBSD: subr_autoconf.c,v 1.89 2015/09/11 20:43:23 dlg Exp $	*/
 /*	$NetBSD: subr_autoconf.c,v 1.21 1996/04/04 06:06:18 cgd Exp $	*/
 
 /*
@@ -475,7 +475,7 @@ config_make_softc(struct device *parent, struct cfdata *cf)
 	if (cd->cd_devs[dev->dv_unit])
 		panic("config_make_softc: duplicate %s", dev->dv_xname);
 
-	refcnt_init(&dev->dv_ref);
+	dev->dv_ref = 1;
 
 	return (dev);
 }
@@ -922,7 +922,7 @@ device_mpath(void)
 void
 device_ref(struct device *dv)
 {
-	refcnt_take(&dv->dv_ref);
+	atomic_inc_int(&dv->dv_ref);
 }
 
 /*
@@ -937,7 +937,7 @@ device_unref(struct device *dv)
 {
 	struct cfattach *ca;
 
-	if (refcnt_rele(&dv->dv_ref)) {
+	if (atomic_dec_int_nv(&dv->dv_ref) == 0) {
 		ca = dv->dv_cfdata->cf_attach;
 		free(dv, M_DEVBUF, ca->ca_devsize);
 	}