diff options
| author | Thierry Reding | 2009-05-11 08:36:39 -0700 |
|---|---|---|
| committer | Dmitry Torokhov | 2009-05-11 15:35:48 -0700 |
| commit | 705a76d2d22a2824f45f07d023a380293554e989 (patch) | |
| tree | b28ca167ee7fd5a48fb5c09d2a143d711934a295 | |
| parent | 9166d0f620d5dd4a128711bdeedb3e0f534d9d49 (diff) | |
Input: tsc2007 - fix locking in hrtimer handler
Now that hrtimers are always running in hard irq context we can't
unconditionally enable interrupts at the end of the timer function.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Kwangwoo Lee <kwangwoo.lee@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
| -rw-r--r-- | drivers/input/touchscreen/tsc2007.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c index 536668fbda22..948e167557f1 100644 --- a/drivers/input/touchscreen/tsc2007.c +++ b/drivers/input/touchscreen/tsc2007.c @@ -200,8 +200,9 @@ static int tsc2007_read_values(struct tsc2007 *tsc) static enum hrtimer_restart tsc2007_timer(struct hrtimer *handle) { struct tsc2007 *ts = container_of(handle, struct tsc2007, timer); + unsigned long flags; - spin_lock_irq(&ts->lock); + spin_lock_irqsave(&ts->lock, flags); if (unlikely(!ts->get_pendown_state() && ts->pendown)) { struct input_dev *input = ts->input; @@ -222,7 +223,7 @@ static enum hrtimer_restart tsc2007_timer(struct hrtimer *handle) tsc2007_send_event(ts); } - spin_unlock_irq(&ts->lock); + spin_unlock_irqrestore(&ts->lock, flags); return HRTIMER_NORESTART; } |