1 files changed, 3 insertions, 22 deletions

diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index a90480baa850..11fe6ed75278 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -49,12 +49,6 @@ LIST_HEAD(dpm_noirq_list);
 static DEFINE_MUTEX(dpm_list_mtx);
 static pm_message_t pm_transition;
 
-/*
- * Set once the preparation of devices for a PM transition has started, reset
- * before starting to resume devices.  Protected by dpm_list_mtx.
- */
-static bool transition_started;
-
 static int async_error;
 
 /**
@@ -97,19 +91,9 @@ void device_pm_add(struct device *dev)
                  dev->bus ? dev->bus->name : "No Bus",
                  kobject_name(&dev->kobj));
         mutex_lock(&dpm_list_mtx);
-        if (dev->parent) {
-                if (dev->parent->power.in_suspend)
-                        dev_warn(dev, "parent %s should not be sleeping\n",
-                                 dev_name(dev->parent));
-        } else if (transition_started) {
-                /*
-                 * We refuse to register parentless devices while a PM
-                 * transition is in progress in order to avoid leaving them
-                 * unhandled down the road
-                 */
-                dev_WARN(dev, "Parentless device registered during a PM transaction\n");
-        }
-
+        if (dev->parent && dev->parent->power.in_suspend)
+                dev_warn(dev, "parent %s should not be sleeping\n",
+                        dev_name(dev->parent));
         list_add_tail(&dev->power.entry, &dpm_list);
         mutex_unlock(&dpm_list_mtx);
 }
@@ -482,7 +466,6 @@ void dpm_resume_noirq(pm_message_t state)
         ktime_t starttime = ktime_get();
 
         mutex_lock(&dpm_list_mtx);
-        transition_started = false;
         while (!list_empty(&dpm_noirq_list)) {
                 struct device *dev = to_device(dpm_noirq_list.next);
                 int error;
@@ -684,7 +667,6 @@ static void dpm_complete(pm_message_t state)
 
         INIT_LIST_HEAD(&list);
         mutex_lock(&dpm_list_mtx);
-        transition_started = false;
         while (!list_empty(&dpm_prepared_list)) {
                 struct device *dev = to_device(dpm_prepared_list.prev);
 
@@ -1020,7 +1002,6 @@ static int dpm_prepare(pm_message_t state)
         int error = 0;
 
         mutex_lock(&dpm_list_mtx);
-        transition_started = true;
         while (!list_empty(&dpm_list)) {
                 struct device *dev = to_device(dpm_list.next);