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Input: mousedev - do not wake up readers when receiving 0-motion

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event.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov
2005-06-01 02:39:36 -05:00
parent e334016fc1
commit 8121152c17
1 changed files with 6 additions and 2 deletions
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8
drivers/input/mousedev.c
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@@ -220,6 +220,7 @@ static void mousedev_notify_readers(struct mousedev *mousedev, struct mousedev_h
struct mousedev_list *list; struct mousedev_list *list;
struct mousedev_motion *p; struct mousedev_motion *p;
unsigned long flags; unsigned long flags;
int wake_readers = 0;
list_for_each_entry(list, &mousedev->list, node) { list_for_each_entry(list, &mousedev->list, node) {
spin_lock_irqsave(&list->packet_lock, flags); spin_lock_irqsave(&list->packet_lock, flags);
@@ -255,11 +256,14 @@ static void mousedev_notify_readers(struct mousedev *mousedev, struct mousedev_h
spin_unlock_irqrestore(&list->packet_lock, flags); spin_unlock_irqrestore(&list->packet_lock, flags);
if (list->ready) if (list->ready) {
kill_fasync(&list->fasync, SIGIO, POLL_IN); kill_fasync(&list->fasync, SIGIO, POLL_IN);
wake_readers = 1;
}
} }
wake_up_interruptible(&mousedev->wait); if (wake_readers)
wake_up_interruptible(&mousedev->wait);
} }
static void mousedev_touchpad_touch(struct mousedev *mousedev, int value) static void mousedev_touchpad_touch(struct mousedev *mousedev, int value)