Input: use full RCU API

[deliverable/linux.git] / drivers / input / joydev.c

diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c
index f306c97f556dc9dd3f68ffc78523885799baa4ce..2b201f9aa02405fce891b9aee53c757307609a28 100644 (file)
--- a/drivers/input/joydev.c
+++ b/drivers/input/joydev.c
@@ -149,8 +149,10 @@ static void joydev_event(struct input_handle *handle,
 
        event.time = jiffies_to_msecs(jiffies);
 
+       rcu_read_lock();
        list_for_each_entry_rcu(client, &joydev->client_list, node)
                joydev_pass_event(client, &event);
+       rcu_read_unlock();
 
        wake_up_interruptible(&joydev->wait);
 }
@@ -178,12 +180,7 @@ static void joydev_attach_client(struct joydev *joydev,
        spin_lock(&joydev->client_lock);
        list_add_tail_rcu(&client->node, &joydev->client_list);
        spin_unlock(&joydev->client_lock);
-       /*
-        * We don't use synchronize_rcu() here because read-side
-        * critical section is protected by a spinlock (dev->event_lock)
-        * instead of rcu_read_lock().
-        */
-       synchronize_sched();
+       synchronize_rcu();
 }
 
 static void joydev_detach_client(struct joydev *joydev,
@@ -192,7 +189,7 @@ static void joydev_detach_client(struct joydev *joydev,
        spin_lock(&joydev->client_lock);
        list_del_rcu(&client->node);
        spin_unlock(&joydev->client_lock);
-       synchronize_sched();
+       synchronize_rcu();
 }
 
 static int joydev_open_device(struct joydev *joydev)