diff options
Diffstat (limited to 'drivers/pwm/sysfs.c')
| -rw-r--r-- | drivers/pwm/sysfs.c | 27 |
1 files changed, 3 insertions, 24 deletions
diff --git a/drivers/pwm/sysfs.c b/drivers/pwm/sysfs.c index ceb233dd6048..bf6823fe0812 100644 --- a/drivers/pwm/sysfs.c +++ b/drivers/pwm/sysfs.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * A simple sysfs interface for the generic PWM framework * * Copyright (C) 2013 H Hartley Sweeten <hsweeten@visionengravers.com> * * Based on previous work by Lars Poeschel <poeschel@lemonage.de> - * - * 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, 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. */ #include <linux/device.h> @@ -398,7 +389,7 @@ void pwmchip_sysfs_export(struct pwm_chip *chip) /* * If device_create() fails the pwm_chip is still usable by - * the kernel its just not exported. + * the kernel it's just not exported. */ parent = device_create(&pwm_class, chip->dev, MKDEV(0, 0), chip, "pwmchip%d", chip->base); @@ -411,19 +402,6 @@ void pwmchip_sysfs_export(struct pwm_chip *chip) void pwmchip_sysfs_unexport(struct pwm_chip *chip) { struct device *parent; - - parent = class_find_device(&pwm_class, NULL, chip, - pwmchip_sysfs_match); - if (parent) { - /* for class_find_device() */ - put_device(parent); - device_unregister(parent); - } -} - -void pwmchip_sysfs_unexport_children(struct pwm_chip *chip) -{ - struct device *parent; unsigned int i; parent = class_find_device(&pwm_class, NULL, chip, @@ -439,6 +417,7 @@ void pwmchip_sysfs_unexport_children(struct pwm_chip *chip) } put_device(parent); + device_unregister(parent); } static int __init pwm_sysfs_init(void) |