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play the addref/delref game on suspend, prevents crash if the disk/CF Card 

is eg. in a PCMCIA adapter and not mounted
This commit is contained in:
drochner 2013-10-30 15:41:14 +00:00
parent 958a129dbd
commit 7ab7c82097
1 changed files with 8 additions and 2 deletions
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10
sys/dev/ata/wd.c
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@ -1,4 +1,4 @@
/* $NetBSD: wd.c,v 1.405 2013/08/19 14:58:57 skrll Exp $ */
/* $NetBSD: wd.c,v 1.406 2013/10/30 15:41:14 drochner Exp $ */
/*
* Copyright (c) 1998, 2001 Manuel Bouyer. All rights reserved.
@ -54,7 +54,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: wd.c,v 1.405 2013/08/19 14:58:57 skrll Exp $");
__KERNEL_RCSID(0, "$NetBSD: wd.c,v 1.406 2013/10/30 15:41:14 drochner Exp $");
#include "opt_ata.h"
@ -405,8 +405,14 @@ wd_suspend(device_t dv, const pmf_qual_t *qual)
{
struct wd_softc *sc = device_private(dv);
/* the adapter needs to be enabled */
if (sc->atabus->ata_addref(sc->drvp))
return true; /* no need to complain */
wd_flushcache(sc, AT_WAIT);
wd_standby(sc, AT_WAIT);
sc->atabus->ata_delref(sc->drvp);
return true;
}