Thomas Gleixner e716efde75 genirq: Avoid deadlock in spurious handling ...

commit 52553ddf(genirq: fix regression in irqfixup, irqpoll)
introduced a potential deadlock by calling the action handler with the
irq descriptor lock held.

Remove the call and let the handling code run even for an interrupt
where only a single action is registered. That matches the goal of
the above commit and avoids the deadlock.

Document the confusing action = desc->action reload in the handling
loop while at it.

Reported-and-tested-by: "Wang, Warner" <warner.wang@hp.com>
Tested-by: Edward Donovan <edward.donovan@numble.net>
Cc: "Wang, Song-Bo (Stoney)" <song-bo.wang@hp.com>
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

2012-12-11 12:25:30 +01:00

..

autoprobe.c

…

chip.c

genirq: Provide means to retrigger parent

2012-11-01 12:11:31 +01:00

debug.h

…

devres.c

…

dummychip.c

genirq: Export dummy_irq_chip

2012-08-21 16:14:23 +02:00

generic-chip.c

…

handle.c

random: make 'add_interrupt_randomness()' do something sane

2012-07-14 20:17:28 -04:00

internals.h

genirq: Introduce irq_do_set_affinity() to reduce duplicated code

2012-05-24 22:36:40 +02:00

irqdesc.c

…

irqdomain.c

irqdomain: augment add_simple() to allocate descs

2012-10-10 08:57:26 +02:00

Kconfig

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Makefile

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manage.c

genirq: Always force thread affinity

2012-11-12 20:07:18 +01:00

migration.c

genirq: Introduce irq_do_set_affinity() to reduce duplicated code

2012-05-24 22:36:40 +02:00

pm.c

…

proc.c

…

resend.c

genirq: Provide means to retrigger parent

2012-11-01 12:11:31 +01:00

settings.h

…

spurious.c

genirq: Avoid deadlock in spurious handling

2012-12-11 12:25:30 +01:00