From 1f5c6855260141ac3115e9a065491ee2ac07f9bc Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Mon, 15 Jan 2018 01:46:25 +0100 Subject: PM / runtime: Check ignore_children in pm_runtime_need_not_resume() Modify pm_runtime_need_not_resume() to make it avoid taking power.child_count for devices with power.ignore_children which is consistent with the runtime PM usage of these fields. Suggested-by: Ulf Hansson Signed-off-by: Rafael J. Wysocki Reviewed-by: Ulf Hansson --- drivers/base/power/runtime.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/base/power/runtime.c') diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c index 84832f1a75bf..cb5e48b86453 100644 --- a/drivers/base/power/runtime.c +++ b/drivers/base/power/runtime.c @@ -1616,7 +1616,8 @@ void pm_runtime_drop_link(struct device *dev) static bool pm_runtime_need_not_resume(struct device *dev) { return atomic_read(&dev->power.usage_count) <= 1 && - atomic_read(&dev->power.child_count) == 0; + (atomic_read(&dev->power.child_count) == 0 || + dev->power.ignore_children); } /** -- cgit v1.2.3