1 files changed, 24 insertions, 5 deletions

diff --git a/net/rfkill/rfkill.c b/net/rfkill/rfkill.c
index c6f2f388cb7..35a9994e233 100644
--- a/net/rfkill/rfkill.c
+++ b/net/rfkill/rfkill.c
@@ -105,6 +105,16 @@ static void rfkill_led_trigger(struct rfkill *rfkill,
 #endif /* CONFIG_RFKILL_LEDS */
 }
 
+#ifdef CONFIG_RFKILL_LEDS
+static void rfkill_led_trigger_activate(struct led_classdev *led)
+{
+	struct rfkill *rfkill = container_of(led->trigger,
+			struct rfkill, led_trigger);
+
+	rfkill_led_trigger(rfkill, rfkill->state);
+}
+#endif /* CONFIG_RFKILL_LEDS */
+
 static void notify_rfkill_state_change(struct rfkill *rfkill)
 {
 	blocking_notifier_call_chain(&rfkill_notifier_list,
@@ -140,6 +150,8 @@ static void update_rfkill_state(struct rfkill *rfkill)
  * calls and handling all the red tape such as issuing notifications
  * if the call is successful.
  *
+ * Suspended devices are not touched at all, and -EAGAIN is returned.
+ *
  * Note that the @force parameter cannot override a (possibly cached)
  * state of RFKILL_STATE_HARD_BLOCKED.  Any device making use of
  * RFKILL_STATE_HARD_BLOCKED implements either get_state() or
@@ -158,6 +170,9 @@ static int rfkill_toggle_radio(struct rfkill *rfkill,
 	int retval = 0;
 	enum rfkill_state oldstate, newstate;
 
+	if (unlikely(rfkill->dev.power.power_state.event & PM_EVENT_SLEEP))
+		return -EBUSY;
+
 	oldstate = rfkill->state;
 
 	if (rfkill->get_state && !force &&
@@ -204,7 +219,7 @@ static int rfkill_toggle_radio(struct rfkill *rfkill,
  *
  * This function toggles the state of all switches of given type,
  * unless a specific switch is claimed by userspace (in which case,
- * that switch is left alone).
+ * that switch is left alone) or suspended.
  */
 void rfkill_switch_all(enum rfkill_type type, enum rfkill_state state)
 {
@@ -229,8 +244,8 @@ EXPORT_SYMBOL(rfkill_switch_all);
 /**
  * rfkill_epo - emergency power off all transmitters
  *
- * This kicks all rfkill devices to RFKILL_STATE_SOFT_BLOCKED, ignoring
- * everything in its path but rfkill_mutex and rfkill->mutex.
+ * This kicks all non-suspended rfkill devices to RFKILL_STATE_SOFT_BLOCKED,
+ * ignoring everything in its path but rfkill_mutex and rfkill->mutex.
  */
 void rfkill_epo(void)
 {
@@ -448,13 +463,14 @@ static int rfkill_resume(struct device *dev)
 	if (dev->power.power_state.event != PM_EVENT_ON) {
 		mutex_lock(&rfkill->mutex);
 
+		dev->power.power_state.event = PM_EVENT_ON;
+
 		/* restore radio state AND notify everybody */
 		rfkill_toggle_radio(rfkill, rfkill->state, 1);
 
 		mutex_unlock(&rfkill->mutex);
 	}
 
-	dev->power.power_state = PMSG_ON;
 	return 0;
 }
 #else
@@ -589,7 +605,10 @@ static void rfkill_led_trigger_register(struct rfkill *rfkill)
 #ifdef CONFIG_RFKILL_LEDS
 	int error;
 
-	rfkill->led_trigger.name = rfkill->dev.bus_id;
+	if (!rfkill->led_trigger.name)
+		rfkill->led_trigger.name = rfkill->dev.bus_id;
+	if (!rfkill->led_trigger.activate)
+		rfkill->led_trigger.activate = rfkill_led_trigger_activate;
 	error = led_trigger_register(&rfkill->led_trigger);
 	if (error)
 		rfkill->led_trigger.name = NULL;