diff options
Diffstat (limited to 'drivers/hwmon/pwm-fan.c')
| -rw-r--r-- | drivers/hwmon/pwm-fan.c | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/drivers/hwmon/pwm-fan.c b/drivers/hwmon/pwm-fan.c index 5fb2745f0226..54c0ff00d67f 100644 --- a/drivers/hwmon/pwm-fan.c +++ b/drivers/hwmon/pwm-fan.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * pwm-fan.c - Hwmon driver for fans connected to PWM lines. * * Copyright (c) 2014 Samsung Electronics Co., Ltd. * * Author: Kamil Debski <k.debski@samsung.com> - * - * 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. */ #include <linux/hwmon.h> @@ -329,8 +320,10 @@ static int pwm_fan_probe(struct platform_device *pdev) dev_err(dev, "Failed to enable fan supply: %d\n", ret); return ret; } - devm_add_action_or_reset(dev, pwm_fan_regulator_disable, - ctx->reg_en); + ret = devm_add_action_or_reset(dev, pwm_fan_regulator_disable, + ctx->reg_en); + if (ret) + return ret; } ctx->pwm_value = MAX_PWM; @@ -346,7 +339,9 @@ static int pwm_fan_probe(struct platform_device *pdev) return ret; } timer_setup(&ctx->rpm_timer, sample_timer, 0); - devm_add_action_or_reset(dev, pwm_fan_pwm_disable, ctx); + ret = devm_add_action_or_reset(dev, pwm_fan_pwm_disable, ctx); + if (ret) + return ret; of_property_read_u32(dev->of_node, "pulses-per-revolution", &ppr); ctx->pulses_per_revolution = ppr; |