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In config_detach(9), if device deactivation fails with EOPNOTSUPP,

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don't treat it as an error.  This should stop the kernel from
panicking in config_detach(9) when sd(4)/wd(4) detach.
This commit is contained in:
dyoung 2009-05-29 23:27:08 +00:00
parent 84b5216c59
commit 2bc3b9efe1
1 changed files with 4 additions and 4 deletions
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8
sys/kern/subr_autoconf.c
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@ -1,4 +1,4 @@
/* $NetBSD: subr_autoconf.c,v 1.176 2009/05/24 12:27:50 ad Exp $ */
/* $NetBSD: subr_autoconf.c,v 1.177 2009/05/29 23:27:08 dyoung Exp $ */
/*
* Copyright (c) 1996, 2000 Christopher G. Demetriou
@ -77,7 +77,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: subr_autoconf.c,v 1.176 2009/05/24 12:27:50 ad Exp $");
__KERNEL_RCSID(0, "$NetBSD: subr_autoconf.c,v 1.177 2009/05/29 23:27:08 dyoung Exp $");
#include "opt_ddb.h"
#include "drvctl.h"
@ -1511,8 +1511,8 @@ config_detach(device_t dev, int flags)
(flags & (DETACH_SHUTDOWN|DETACH_FORCE)) == DETACH_SHUTDOWN &&
(dev->dv_flags & DVF_DETACH_SHUTDOWN) == 0) {
rv = EBUSY; /* XXX EOPNOTSUPP? */
} else if (ca->ca_activate != NULL)
rv = config_deactivate(dev);
} else if ((rv = config_deactivate(dev)) == EOPNOTSUPP)
rv = 0; /* Do not treat EOPNOTSUPP as an error */
/*
* Try to detach the device. If that's not possible, then