[IA64] Fix possible race in destroy_and_reserve_irq()

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Currently, destroy_and_reserve_irq() sets irq_status[irq] UNUSED using
clear_irq_vector() and sets irq_status[irq] RSVD using reserve_irq().
But there is a race window because vector_lock is once released between
them. This patch fixes this race window.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

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Kenji Kaneshige 2007-07-30 11:56:30 +09:00 • committed by Tony Luck

parent c4c376f7e1

commit 216fcd29af

1 changed files with 6 additions and 11 deletions

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arch/ia64/kernel/irq_ia64.c

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