diff options
Diffstat (limited to 'drivers/dca/dca-sysfs.c')
| -rw-r--r-- | drivers/dca/dca-sysfs.c | 42 |
1 files changed, 14 insertions, 28 deletions
diff --git a/drivers/dca/dca-sysfs.c b/drivers/dca/dca-sysfs.c index 126cf295b198..b915c2b4601e 100644 --- a/drivers/dca/dca-sysfs.c +++ b/drivers/dca/dca-sysfs.c @@ -1,22 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., 59 - * Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * - * The full GNU General Public License is included in this distribution in the - * file called COPYING. */ #include <linux/kernel.h> @@ -29,7 +13,9 @@ #include <linux/gfp.h> #include <linux/export.h> -static struct class *dca_class; +static const struct class dca_class = { + .name = "dca", +}; static struct idr dca_idr; static spinlock_t dca_idr_lock; @@ -38,16 +24,14 @@ int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot) struct device *cd; static int req_count; - cd = device_create(dca_class, dca->cd, MKDEV(0, slot + 1), NULL, + cd = device_create(&dca_class, dca->cd, MKDEV(0, slot + 1), NULL, "requester%d", req_count++); - if (IS_ERR(cd)) - return PTR_ERR(cd); - return 0; + return PTR_ERR_OR_ZERO(cd); } void dca_sysfs_remove_req(struct dca_provider *dca, int slot) { - device_destroy(dca_class, MKDEV(0, slot + 1)); + device_destroy(&dca_class, MKDEV(0, slot + 1)); } int dca_sysfs_add_provider(struct dca_provider *dca, struct device *dev) @@ -67,7 +51,7 @@ int dca_sysfs_add_provider(struct dca_provider *dca, struct device *dev) if (ret < 0) return ret; - cd = device_create(dca_class, dev, MKDEV(0, 0), NULL, "dca%d", dca->id); + cd = device_create(&dca_class, dev, MKDEV(0, 0), NULL, "dca%d", dca->id); if (IS_ERR(cd)) { spin_lock(&dca_idr_lock); idr_remove(&dca_idr, dca->id); @@ -89,20 +73,22 @@ void dca_sysfs_remove_provider(struct dca_provider *dca) int __init dca_sysfs_init(void) { + int err; + idr_init(&dca_idr); spin_lock_init(&dca_idr_lock); - dca_class = class_create(THIS_MODULE, "dca"); - if (IS_ERR(dca_class)) { + err = class_register(&dca_class); + if (err) { idr_destroy(&dca_idr); - return PTR_ERR(dca_class); + return err; } return 0; } void __exit dca_sysfs_exit(void) { - class_destroy(dca_class); + class_unregister(&dca_class); idr_destroy(&dca_idr); } |