From b0eecd7ac065e56de0cf7fb0bed75accd472adb1 Mon Sep 17 00:00:00 2001
From: dlg <dlg@openbsd.org>
Date: Mon, 19 Jan 2015 06:27:57 +0000
Subject: [PATCH] pass the size of the softc to free.

ok deraadt@
---
 sys/kern/subr_autoconf.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sys/kern/subr_autoconf.c b/sys/kern/subr_autoconf.c
index 00b988e7c29..7bb3acec49f 100644
--- a/sys/kern/subr_autoconf.c
+++ b/sys/kern/subr_autoconf.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: subr_autoconf.c,v 1.80 2014/09/18 18:54:29 kettenis Exp $	*/
+/*	$OpenBSD: subr_autoconf.c,v 1.81 2015/01/19 06:27:57 dlg Exp $	*/
 /*	$NetBSD: subr_autoconf.c,v 1.21 1996/04/04 06:06:18 cgd Exp $	*/
 
 /*
@@ -935,8 +935,10 @@ device_ref(struct device *dv)
 void
 device_unref(struct device *dv)
 {
+	struct cfattach *ca = dv->dv_cfdata->cf_attach;
+
 	dv->dv_ref--;
 	if (dv->dv_ref == 0) {
-		free(dv, M_DEVBUF, 0);
+		free(dv, M_DEVBUF, ca->ca_devsize);
 	}
 }
-- 
2.20.1