Christophe JAILLET f47f758cff drivers/base/memory: fix an unlikely reference counting issue in __add_memory_block() ...

__add_memory_block() calls both put_device() and device_unregister() when
storing the memory block into the xarray.  This is incorrect because
xarray doesn't take an additional reference and device_unregister()
already calls put_device().

Triggering the issue looks really unlikely and its only effect should be
to log a spurious warning about a ref counted issue.

Link: https://lkml.kernel.org/r/d44c63d78affe844f020dc02ad6af29abc448fc4.1650611702.git.christophe.jaillet@wanadoo.fr
Fixes: 4fb6eabf10 ("drivers/base/memory.c: cache memory blocks in xarray to accelerate lookup")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Scott Cheloha <cheloha@linux.vnet.ibm.com>
Cc: Nathan Lynch <nathanl@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

2022-04-28 23:16:19 -07:00

..

firmware_loader

firmware_loader: EXTRA_FIRMWARE does not support compressed files

2022-02-25 12:14:42 +01:00

power

Merge branches 'pm-sleep', 'pm-domains' and 'pm-docs'

2022-03-18 18:29:21 +01:00

regmap

Merge tag 'regmap-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

2022-03-21 18:22:42 -07:00

test

driver core: Simplify async probe test code by using ktime_ms_delta()

2021-12-29 10:57:22 +01:00

arch_numa.c

mm: percpu: add generic pcpu_populate_pte() function

2022-01-20 08:52:52 +02:00

arch_topology.c

arch_topology: obtain cpu capacity using information from CPPC

2022-03-10 20:21:58 +01:00

attribute_container.c

…

auxiliary.c

…

base.h

…

bus.c

kobject: remove kset from struct kset_uevent_ops callbacks

2021-12-28 11:26:18 +01:00

cacheinfo.c

…

class.c

block: remove genhd.h

2022-02-02 07:49:59 -07:00

component.c

component: Add common helper for compare/release functions

2022-02-25 12:16:12 +01:00

container.c

…

core.c

block: remove genhd.h

2022-02-02 07:49:59 -07:00

cpu.c

sched/isolation: Use single feature type while referring to housekeeping cpumask

2022-02-16 15:57:55 +01:00

dd.c

net: mdio: don't defer probe forever if PHY IRQ provider is missing

2022-04-08 14:17:55 -07:00

devcoredump.c

…

devres.c

devres: fix typos in comments

2022-03-18 14:30:12 +01:00

devtmpfs.c

Merge tag 'driver-core-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2022-03-28 12:41:28 -07:00

driver.c

…

firmware.c

…

hypervisor.c

…

init.c

drivers/base/node: consolidate node device subsystem initialization in node_dev_init()

2022-03-22 15:57:10 -07:00

isa.c

…

Kconfig

devtmpfs: mount with noexec and nosuid

2021-12-30 13:54:42 +01:00

Makefile

…

map.c

…

memory.c

drivers/base/memory: fix an unlikely reference counting issue in __add_memory_block()

2022-04-28 23:16:19 -07:00

module.c

…

node.c

drivers/base/node.c: fix compaction sysfs file leak

2022-04-28 23:16:06 -07:00

pinctrl.c

…

platform-msi.c

platform-msi: Simplify platform device MSI code

2021-12-16 22:22:19 +01:00

platform.c

platform: use dev_err_probe() in platform_get_irq_byname()

2022-02-08 12:22:07 +01:00

property.c

device property: Don't split fwnode_get_irq*() APIs in the code

2022-02-14 18:57:41 +01:00

soc.c

base: soc: Make soc_device_match() simpler and easier to read

2022-03-18 14:28:07 +01:00

swnode.c

software node: fix wrong node passed to find nargs_prop

2021-12-22 18:26:18 +01:00

syscore.c

…

topology.c

topology/sysfs: Add PPIN in sysfs under cpu topology

2022-02-01 16:36:42 +01:00

trace.c

…

trace.h

…

transport_class.c

…