Juergen Gross cfbb3abadc xen/events: increment refcnt only if event channel is refcounted ...

[ Upstream commit d277f9d82802223f242cd9b60c988cfdda1d6be0 ]

In bind_evtchn_to_irq_chip() don't increment the refcnt of the event
channel blindly. In case the event channel is NOT refcounted, issue a
warning instead.

Add an additional safety net by doing the refcnt increment only if the
caller has specified IRQF_SHARED in the irqflags parameter.

Fixes: 9e90e58c11b7 ("xen: evtchn: Allow shared registration of IRQ handers")
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Link: https://lore.kernel.org/r/20240313071409.25913-3-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-03-26 18:20:09 -04:00

..

events

xen/events: increment refcnt only if event channel is refcounted

2024-03-26 18:20:09 -04:00

xen-pciback

xen-pciback: Consider INTx disabled when MSI/MSI-X is enabled

2023-11-20 11:59:12 +01:00

xenbus

xenbus: fix error exit in xenbus_init()

2023-11-20 11:59:12 +01:00

xenfs

xen: remove unnecessary (void*) conversions

2023-03-16 12:04:00 +01:00

acpi.c

…

arm-device.c

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balloon.c

xen: simplify sysctl registration for balloon

2023-04-13 11:49:20 -07:00

biomerge.c

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cpu_hotplug.c

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dbgp.c

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efi.c

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evtchn.c

xen/evtchn: avoid WARN() when unbinding an event channel

2024-03-26 18:20:09 -04:00

features.c

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gntalloc.c

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gntdev-common.h

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gntdev-dmabuf.c

xen/gntdev: Fix the abuse of underlying struct page in DMA-buf import

2024-02-05 20:14:31 +00:00

gntdev-dmabuf.h

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gntdev.c

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grant-dma-iommu.c

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grant-dma-ops.c

xen/virtio: Fix NULL deref when a bridge of PCI root bus has no parent

2023-07-04 08:18:21 +02:00

grant-table.c

xen: Fix one kernel-doc comment

2023-08-21 15:58:57 +02:00

Kconfig

xen: privcmd: Add support for irqfd

2023-08-22 12:12:50 +02:00

Makefile

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manage.c

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mcelog.c

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mem-reservation.c

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pci.c

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pcpu.c

acpi/processor: sanitize _OSC/_PDC capabilities for Xen dom0

2023-11-28 17:19:57 +00:00

platform-pci.c

xen: simplify evtchn_do_upcall() call maze

2023-09-19 07:04:49 +02:00

privcmd-buf.c

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privcmd.c

xen: Make struct privcmd_irqfd's layout architecture independent

2023-11-20 11:59:12 +01:00

privcmd.h

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pvcalls-back.c

workqueue: Ordered workqueue creation cleanups

2023-06-27 16:46:06 -07:00

pvcalls-front.c

xen/pvcalls: don't call bind_evtchn_to_irqhandler() under lock

2023-04-24 07:27:10 +02:00

pvcalls-front.h

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swiotlb-xen.c

swiotlb-xen: provide the "max_mapping_size" method

2023-12-03 07:33:07 +01:00

sys-hypervisor.c

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time.c

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unpopulated-alloc.c

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xen-acpi-pad.c

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xen-acpi-processor.c

xen: Switch to use kmemdup() helper

2023-08-21 09:54:05 +02:00

xen-balloon.c

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xen-front-pgdir-shbuf.c

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xen-scsiback.c

xen: branch for v6.4-rc1

2023-04-27 17:27:06 -07:00

xlate_mmu.c

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