[src/trunk]: src/sys/dev/dkwedge dk(4): Assert dkwedges[unit] is the sc we're...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/fcaf2f1c2770
branches:  trunk
changeset: 374384:fcaf2f1c2770
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Fri Apr 21 18:29:33 2023 +0000

description:
dk(4): Assert dkwedges[unit] is the sc we're about to free.

diffstat:

 sys/dev/dkwedge/dk.c |  6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diffs (34 lines):

diff -r 72076a74d070 -r fcaf2f1c2770 sys/dev/dkwedge/dk.c
--- a/sys/dev/dkwedge/dk.c      Fri Apr 21 18:29:26 2023 +0000
+++ b/sys/dev/dkwedge/dk.c      Fri Apr 21 18:29:33 2023 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: dk.c,v 1.138 2023/04/21 18:29:26 riastradh Exp $       */
+/*     $NetBSD: dk.c,v 1.139 2023/04/21 18:29:33 riastradh Exp $       */
 
 /*-
  * Copyright (c) 2004, 2005, 2006, 2007 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: dk.c,v 1.138 2023/04/21 18:29:26 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: dk.c,v 1.139 2023/04/21 18:29:33 riastradh Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_dkwedge.h"
@@ -552,6 +552,7 @@ dkwedge_add(struct dkwedge_info *dkw)
                    sc->sc_cfdata.cf_name, sc->sc_cfdata.cf_unit);
 
                rw_enter(&dkwedges_lock, RW_WRITER);
+               KASSERT(dkwedges[sc->sc_cfdata.cf_unit] == sc);
                dkwedges[sc->sc_cfdata.cf_unit] = NULL;
                rw_exit(&dkwedges_lock);
 
@@ -752,6 +753,7 @@ dkwedge_detach(device_t self, int flags)
 
        /* Poof. */
        rw_enter(&dkwedges_lock, RW_WRITER);
+       KASSERT(dkwedges[unit] == sc);
        dkwedges[unit] = NULL;
        sc->sc_state = DKW_STATE_DEAD;
        rw_exit(&dkwedges_lock);