Input: serio - use list_first_entry() helper

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index d89880450f77b6a0d122cf4d213695e2a4bcc5ba..7fbf7670ae095ba1ae89ca194c8ae52b949f9468 100644 (file)
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -230,14 +230,12 @@ static void serio_free_event(struct serio_event *event)
 
 static void serio_remove_duplicate_events(struct serio_event *event)
 {
-       struct list_head *node, *next;
-       struct serio_event *e;
+       struct serio_event *e, *next;
        unsigned long flags;
 
        spin_lock_irqsave(&serio_event_lock, flags);
 
-       list_for_each_safe(node, next, &serio_event_list) {
-               e = list_entry(node, struct serio_event, node);
+       list_for_each_entry_safe(e, next, &serio_event_list, node) {
                if (event->object == e->object) {
                        /*
                         * If this event is of different type we should not
@@ -247,7 +245,7 @@ static void serio_remove_duplicate_events(struct serio_event *event)
                        if (event->type != e->type)
                                break;
 
-                       list_del_init(node);
+                       list_del_init(&e->node);
                        serio_free_event(e);
                }
        }
@@ -258,23 +256,18 @@ static void serio_remove_duplicate_events(struct serio_event *event)
 
 static struct serio_event *serio_get_event(void)
 {
-       struct serio_event *event;
-       struct list_head *node;
+       struct serio_event *event = NULL;
        unsigned long flags;
 
        spin_lock_irqsave(&serio_event_lock, flags);
 
-       if (list_empty(&serio_event_list)) {
-               spin_unlock_irqrestore(&serio_event_lock, flags);
-               return NULL;
+       if (!list_empty(&serio_event_list)) {
+               event = list_first_entry(&serio_event_list,
+                                        struct serio_event, node);
+               list_del_init(&event->node);
        }
 
-       node = serio_event_list.next;
-       event = list_entry(node, struct serio_event, node);
-       list_del_init(node);
-
        spin_unlock_irqrestore(&serio_event_lock, flags);
-
        return event;
 }
 
@@ -331,16 +324,14 @@ static void serio_handle_event(void)
  */
 static void serio_remove_pending_events(void *object)
 {
-       struct list_head *node, *next;
-       struct serio_event *event;
+       struct serio_event *event, *next;
        unsigned long flags;
 
        spin_lock_irqsave(&serio_event_lock, flags);
 
-       list_for_each_safe(node, next, &serio_event_list) {
-               event = list_entry(node, struct serio_event, node);
+       list_for_each_entry_safe(event, next, &serio_event_list, node) {
                if (event->object == object) {
-                       list_del_init(node);
+                       list_del_init(&event->node);
                        serio_free_event(event);
                }
        }