1 /* 2 * Copyright (c) 2018 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 30 extern char *drm_vasprintf(int flags, const char *format, va_list ap); 31 32 int kobject_init_and_add(struct kobject *kobj, struct kobj_type *ktype, 33 struct kobject *parent, const char *fmt, ...) 34 { 35 va_list ap; 36 37 kobj->ktype = ktype; 38 kref_init(&kobj->kref); 39 40 va_start(ap, fmt); 41 kobj->name = drm_vasprintf(M_WAITOK, fmt, ap); 42 va_end(ap); 43 44 return 0; 45 } 46 47 void kobject_release(struct kref *kref) 48 { 49 struct kobject *kobj = container_of(kref, struct kobject, kref); 50 51 if (kobj->ktype && kobj->ktype->release) 52 kobj->ktype->release(kobj); 53 } 54