Thomas Gleixner fe4aeb98a2 genirq: Prevent resend to interrupts marked IRQ_NESTED_THREAD ...

commit 75a06189fc upstream.

The resend mechanism happily calls the interrupt handler of interrupts
which are marked IRQ_NESTED_THREAD from softirq context. This can
result in crashes because the interrupt handler is not the proper way
to invoke the device handlers. They must be invoked via
handle_nested_irq.

Prevent the resend even if the interrupt has no valid parent irq
set. Its better to have a lost interrupt than a crashing machine.

Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2015-08-10 12:21:04 -07:00

..

autoprobe.c

genirq: Handle pending irqs in irq_startup()

2012-02-15 11:56:59 +01:00

chip.c

irq: Fix some trivial typos in comments

2013-10-18 14:49:30 +02:00

debug.h

irq: hide debug macros so they don't collide with others.

2012-04-23 12:30:03 -04:00

devres.c

genirq: devres: Fix testing return value of request_any_context_irq()

2015-08-03 09:29:51 -07:00

dummychip.c

genirq: Export dummy_irq_chip

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

generic-chip.c

Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-07-13 15:37:30 -07:00

handle.c

random: make 'add_interrupt_randomness()' do something sane

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

internals.h

genirq: Prevent proc race against freeing of irq descriptors

2015-01-27 08:18:55 -08:00

irqdesc.c

genirq: Prevent proc race against freeing of irq descriptors

2015-01-27 08:18:55 -08:00

irqdomain.c

genirq: Include missing header file in irqdomain.c

2014-02-27 13:29:35 +01:00

Kconfig

genirq: Generic irq chip requires IRQ_DOMAIN

2014-02-05 10:17:32 +01:00

Makefile

irq: add irq_domain translation infrastructure

2011-07-28 01:32:04 -06:00

manage.c

genirq: Sanitize spurious interrupt detection of threaded irqs

2014-06-30 20:12:00 -07:00

migration.c

genirq: Introduce irq_do_set_affinity() to reduce duplicated code

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

pm.c

irq: Enable all irqs unconditionally in irq_resume

2013-11-25 22:20:02 +01:00

proc.c

genirq: Prevent proc race against freeing of irq descriptors

2015-01-27 08:18:55 -08:00

resend.c

genirq: Prevent resend to interrupts marked IRQ_NESTED_THREAD

2015-08-10 12:21:04 -07:00

settings.h

genirq: Prevent spurious detection for unconditionally polled interrupts

2013-11-13 16:03:02 +01:00

spurious.c

genirq: Sanitize spurious interrupt detection of threaded irqs

2014-06-30 20:12:00 -07:00