1 /*
2 * Copyright (c) 2018-2019 François Tigeot <ftigeot@wolfpond.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
10 * disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #include <linux/gfp.h>
28 #include <linux/kobject.h>
29
kobject_init_and_add(struct kobject * kobj,struct kobj_type * ktype,struct kobject * parent,const char * fmt,...)30 int kobject_init_and_add(struct kobject *kobj, struct kobj_type *ktype,
31 struct kobject *parent, const char *fmt, ...)
32 {
33 va_list ap;
34
35 kobj->ktype = ktype;
36 kref_init(&kobj->kref);
37
38 va_start(ap, fmt);
39 kobj->name = kvasprintf(M_WAITOK, fmt, ap);
40 va_end(ap);
41
42 return 0;
43 }
44
kobject_release(struct kref * kref)45 void kobject_release(struct kref *kref)
46 {
47 struct kobject *kobj = container_of(kref, struct kobject, kref);
48
49 if (kobj->ktype && kobj->ktype->release)
50 kobj->ktype->release(kobj);
51 }
52