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Input: tsc2007 - use disable_irq_nosync() in irq handler 

disable_irq() waits for all running handlers to complete before
returning.  As such, if it's used to disable an interrupt from
that interrupt's handler it will deadlock.  This replaces the
dangerous instances with the _nosync() variant which doesn't have
this problem.

Signed-off-by: Ben Nizette <bn@niasdigital.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Ben Nizette 2009-04-17 20:35:57 -07:00 committed by Dmitry Torokhov
parent e4bd3e591c
commit 29fa98bd9b
1 changed files with 1 additions and 1 deletions
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2
drivers/input/touchscreen/tsc2007.c
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@ -235,7 +235,7 @@ static irqreturn_t tsc2007_irq(int irq, void *handle)
spin_lock_irqsave(&ts->lock, flags);
if (likely(ts->get_pendown_state())) {
disable_irq(ts->irq);
disable_irq_nosync(ts->irq);
hrtimer_start(&ts->timer, ktime_set(0, TS_POLL_DELAY),
HRTIMER_MODE_REL);
}