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genirq: Do not consider disabled wakeup irqs 

If an wakeup interrupt has been disabled before the suspend code
disables all interrupts then we have to ignore the pending flag.

Otherwise we would abort suspend over and over as nothing clears the
pending flag because the interrupt is disabled.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: NeilBrown <neilb@suse.de>
This commit is contained in:
Thomas Gleixner 2012-05-04 17:56:16 +02:00
parent d4dc0f90d2
commit 9c6079aa1b
1 changed files with 6 additions and 1 deletions
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7
kernel/irq/pm.c
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@ -103,8 +103,13 @@ int check_wakeup_irqs(void)
int irq;
for_each_irq_desc(irq, desc) {
/*
* Only interrupts which are marked as wakeup source
* and have not been disabled before the suspend check
* can abort suspend.
*/
if (irqd_is_wakeup_set(&desc->irq_data)) {
if (desc->istate & IRQS_PENDING)
if (desc->depth == 1 && desc->istate & IRQS_PENDING)
return -EBUSY;
continue;
}