Thomas Gleixner fc590c22f9 genirq: Robustify handle_percpu_devid_irq() ...

The percpu_devid handler is not robust against spurious interrupts. If a
spurious interrupt happens and no action is installed then the handler
crashes with a NULL pointer dereference.

Add a sanity check for this and log the wreckage once in dmesg.

Reported-by: Majun <majun258@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: guohanjun@huawei.com
Cc: dingtianhong@huawei.com
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1609021436160.5647@nanos

2016-09-02 18:06:49 +02:00

..

affinity.c

genirq: Add a helper to spread an affinity mask for MSI/MSI-X vectors

2016-07-04 12:25:14 +02:00

autoprobe.c

genirq: Handle pending irqs in irq_startup()

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

chip.c

genirq: Robustify handle_percpu_devid_irq()

2016-09-02 18:06:49 +02:00

cpuhotplug.c

genirq: Make the cpuhotplug migration code less noisy

2015-10-22 14:34:57 +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()

2015-05-13 10:47:37 +02:00

dummychip.c

Merge branch 'linus' into irq/core

2015-06-05 22:25:01 +02:00

generic-chip.c

genirq: Add chip_[suspend|resume] PM support to irq_chip

2015-07-27 08:09:38 +02:00

handle.c

genirq: Add untracked irq handler

2016-06-18 10:00:55 +02:00

internals.h

Merge branch 'irq/for-block' into irq/core

2016-07-04 12:26:05 +02:00

ipi.c

genirq: Fix missing irq allocation affinity hint

2016-07-19 10:49:47 +02:00

irqdesc.c

genirq: Use affinity hint in irqdesc allocation

2016-07-04 12:25:13 +02:00

irqdomain.c

irqdomain: Fix irq_domain_alloc_irqs_recursive() error handling

2016-07-11 17:23:48 +02:00

Kconfig

genirq: Add GENERIC_IRQ_IPI Kconfig symbol

2016-02-25 10:56:55 +01:00

Makefile

genirq: Add a helper to spread an affinity mask for MSI/MSI-X vectors

2016-07-04 12:25:14 +02:00

manage.c

Merge branch 'irq/for-block' into irq/core

2016-07-04 12:26:05 +02:00

migration.c

genirq: Remove bogus restriction in irq_move_mask_irq()

2015-06-20 19:05:14 +02:00

msi.c

genirq/msi: Fix broken debug output

2016-07-04 15:32:25 +02:00

pm.c

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

2015-11-15 09:30:48 -08:00

proc.c

Merge branch 'irq/for-block' into irq/core

2016-07-04 12:26:05 +02:00

resend.c

genirq: Remove irq argument from irq flow handlers

2015-09-16 15:47:51 +02:00

settings.h

genirq: Add flag to force mask in disable_irq[_nosync]()

2015-10-11 11:33:42 +02:00

spurious.c

genirq: Use a common macro to go through the actions list

2016-02-15 00:07:34 +01:00