Commit 9c6079aa authored May 04, 2012 by Thomas Gleixner

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>

parent d4dc0f90

kernel/irq/pm.c

+6 −1

Original line number	Diff line number	Diff line
		@@ -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;
		}