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ARM: Do not allow the probing of the local timer

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Since this IRQ descriptor doesn't have an action registered, it is
allowed for probing via probe_irq_on/off() and it will be disabled by
the latter function. This patch sets the IRQ_NOPROBE status bit for the
local timer descriptor.

Signed-off-by: Varun Swara <Varun.Swara@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Varun Swara 2009-12-09 10:02:19 +00:00 committed by Catalin Marinas
parent 93fd03a8c6
commit 10b496832e
1 changed files with 1 additions and 0 deletions
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1
arch/arm/kernel/smp_twd.c
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@ -160,6 +160,7 @@ void __cpuinit twd_timer_setup(struct clock_event_device *clk)
/* Make sure our local interrupt controller has this enabled */
local_irq_save(flags);
irq_to_desc(clk->irq)->status |= IRQ_NOPROBE;
get_irq_chip(clk->irq)->unmask(clk->irq);
local_irq_restore(flags);