PM / devfreq: Fix faulty error message

The misleading log "releasing devfreq which doesn't exist" prints out for well behaved clients. This is due to the fact that _remove_devfreq calls itself recursively by proxy (via put_device()). The second time _devfreq_remove is called the respective device has already been deleted, causing the misleading warning.

So just skip printing the message if _devfreq_remove was called via put_device().

---
 drivers/devfreq/devfreq.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

index 30b538d8..bee59db 100644
@@ -399,7 +399,8 @@ static void _remove_devfreq(struct devfreq *devfreq)
 	mutex_lock(&devfreq_list_lock);
 	if (IS_ERR(find_device_devfreq(devfreq->dev.parent))) {
 		mutex_unlock(&devfreq_list_lock);
-		dev_warn(&devfreq->dev, "releasing devfreq which doesn't exist\n");
+		if (!skip)
+			dev_warn(&devfreq->dev, "releasing devfreq which doesn't exist\n");
 		return;
 	}
 	list_del(&devfreq->node);

The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project