diff options
Diffstat (limited to 'drivers/hwmon/pwm-fan.c')
| -rw-r--r-- | drivers/hwmon/pwm-fan.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/hwmon/pwm-fan.c b/drivers/hwmon/pwm-fan.c index 08c9b9f1c16e..42ffd2e5182d 100644 --- a/drivers/hwmon/pwm-fan.c +++ b/drivers/hwmon/pwm-fan.c @@ -304,7 +304,7 @@ static int pwm_fan_probe(struct platform_device *pdev) platform_set_drvdata(pdev, ctx); - ctx->irq = platform_get_irq(pdev, 0); + ctx->irq = platform_get_irq_optional(pdev, 0); if (ctx->irq == -EPROBE_DEFER) return ctx->irq; @@ -320,8 +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; @@ -337,7 +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; |