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author | Thierry Reding <thierry.reding@avionic-design.de> | 2009-05-11 17:36:39 +0200 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2009-05-12 00:35:48 +0200 |
commit | 705a76d2d22a2824f45f07d023a380293554e989 (patch) | |
tree | b28ca167ee7fd5a48fb5c09d2a143d711934a295 /drivers/input | |
parent | Input: atkbd - add force release keys quirk for Amilo Xi 3650 (diff) | |
download | linux-705a76d2d22a2824f45f07d023a380293554e989.tar.xz linux-705a76d2d22a2824f45f07d023a380293554e989.zip |
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>
Diffstat (limited to 'drivers/input')
-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; } |