From 5504fb816016234f7c423924040d7fec8e02ebb1 Mon Sep 17 00:00:00 2001
From: Markus Ressel <mail@markusressel.de>
Date: Tue, 3 Oct 2023 13:25:05 +0200
Subject: [PATCH] ignore permission errors and try to continue anyway

---
 internal/fans/hwmon.go | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/internal/fans/hwmon.go b/internal/fans/hwmon.go
index 8ef02ec..3355466 100644
--- a/internal/fans/hwmon.go
+++ b/internal/fans/hwmon.go
@@ -161,9 +161,14 @@ func (fan *HwMonFan) IsPwmAuto() (bool, error) {
 func (fan *HwMonFan) SetPwmEnabled(value ControlMode) (err error) {
 	err = util.WriteIntToFile(int(value), fan.Config.HwMon.PwmEnablePath)
 	if err == nil {
-		currentValue, err := util.ReadIntFromFile(fan.Config.HwMon.PwmEnablePath)
-		if err != nil || ControlMode(currentValue) != value {
-			return fmt.Errorf("PWM mode stuck to %d", currentValue)
+		currentValue, err := fan.GetPwmEnabled()
+		if err != nil {
+			if errors.Is(err, os.ErrPermission) {
+				ui.Warning("Cannot read pwm_enable of fan '%s', pwm_enable state validation cannot work. Continuing assuming it worked.", fan.GetId())
+				return nil
+			} else if ControlMode(currentValue) != value {
+				return fmt.Errorf("PWM mode stuck to %d", currentValue)
+			}
 		}
 	}
 	return err