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-rw-r--r--drivers/input/mousedev.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
index 96fb9870834a..08b191180af0 100644
--- a/drivers/input/mousedev.c
+++ b/drivers/input/mousedev.c
@@ -220,6 +220,7 @@ static void mousedev_notify_readers(struct mousedev *mousedev, struct mousedev_h
struct mousedev_list *list;
struct mousedev_motion *p;
unsigned long flags;
+ int wake_readers = 0;
list_for_each_entry(list, &mousedev->list, node) {
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);
- if (list->ready)
+ if (list->ready) {
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)