Home | History | Annotate | Line # | Download | only in dm
dm_table.c revision 1.1.2.2 
      1 /*
      2  * Copyright (c) 1996, 1997, 1998, 1999, 2002 The NetBSD Foundation, Inc.
      3  * All rights reserved.
      4  *
      5  * This code is derived from software contributed to The NetBSD Foundation
      6  * by Adam Hamsik.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     20  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     25  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     27  * POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #include <sys/types.h>
     31 #include <sys/param.h>
     32 
     33 #include <sys/errno.h>
     34 #include <sys/ioctl.h>
     35 #include <sys/ioccom.h>
     36 #include <sys/kmem.h>
     37 #include <sys/lkm.h>
     38 
     39 #include <machine/int_fmtio.h>
     40 
     41 #include "dm.h"
     42 
     43 int
     44 dm_table_destroy(struct dm_table *head)
     45 {
     46 
     47 	struct dm_table_entry *table_en;
     48 
     49 
     50 	SLIST_FOREACH(table_en, head, next){
     51 
     52 		/* Remove target specific config data. */
     53 		if (table_en->target_config != NULL)
     54 			table_en->target->destroy(table_en);
     55 
     56 		SLIST_REMOVE(head, table_en, dm_table_entry, next);
     57 
     58 		if (table_en->params)
     59 			kmem_free(table_en->params, strlen(table_en->params));
     60 
     61 		kmem_free(table_en, sizeof(*table_en));
     62 	}
     63 
     64 	return 0;
     65 }
     66