zhong jiang 37803841c9 mm/memory_hotplug: do not unlock after failing to take the device_hotplug_lock ...

When adding memory by probing a memory block in the sysfs interface,
there is an obvious issue where we will unlock the device_hotplug_lock
when we failed to takes it.

That issue was introduced in 8df1d0e4a2 ("mm/memory_hotplug: make
add_memory() take the device_hotplug_lock").

We should drop out in time when failing to take the device_hotplug_lock.

Link: http://lkml.kernel.org/r/1554696437-9593-1-git-send-email-zhongjiang@huawei.com
Fixes: 8df1d0e4a2 ("mm/memory_hotplug: make add_memory() take the device_hotplug_lock")
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Reported-by: Yang yingliang <yangyingliang@huawei.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2019-04-19 09:46:04 -07:00

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firmware_loader

firmware: hardcode the debug message for -ENOENT

2019-02-26 11:59:43 +01:00

power

PM / Domains: Avoid a potential deadlock

2019-03-19 22:58:04 +01:00

regmap

Merge remote-tracking branch 'regmap/topic/irq' into regmap-next

2019-01-29 17:17:03 +00:00

test

driver core: Rewrite test_async_driver_probe to cover serialization and NUMA affinity

2019-01-31 14:20:54 +01:00

arch_topology.c

…

attribute_container.c

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base.h

driver core: Probe devices asynchronously instead of the driver

2019-01-31 14:20:53 +01:00

bus.c

driver core: Probe devices asynchronously instead of the driver

2019-01-31 14:20:53 +01:00

cacheinfo.c

cacheinfo: Keep the old value if of_property_read_u32 fails

2019-01-22 13:50:31 +01:00

class.c

driver core: move device->knode_class to device_private

2019-01-18 16:55:48 +01:00

component.c

drivers/component: kerneldoc polish

2019-02-19 13:20:35 +01:00

container.c

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core.c

driver core: Fix PM-runtime for links added during consumer probe

2019-02-20 11:18:07 +01:00

cpu.c

Merge tag 'driver-core-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2019-03-06 14:52:48 -08:00

dd.c

async: Add cmdline option to specify drivers to be async probed

2019-02-14 10:51:39 +01:00

devcon.c

device connection: Find device connections also from device graphs

2019-02-14 10:52:25 +01:00

devcoredump.c

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devres.c

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devtmpfs.c

vfs: Suppress MS_* flag defs within the kernel unless explicitly enabled

2018-12-20 16:32:56 +00:00

driver.c

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firmware.c

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hypervisor.c

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init.c

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isa.c

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Kconfig

dma-mapping: move CONFIG_DMA_CMA to kernel/dma/Kconfig

2019-02-20 07:27:00 -07:00

Makefile

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map.c

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memory.c

mm/memory_hotplug: do not unlock after failing to take the device_hotplug_lock

2019-04-19 09:46:04 -07:00

module.c

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node.c

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pinctrl.c

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platform-msi.c

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platform.c

Merge tag 'gpio-v5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

2019-03-08 10:09:53 -08:00

property.c

device property: fix fwnode_graph_get_next_endpoint() documentation

2018-12-18 23:39:45 +01:00

soc.c

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swnode.c

drivers: base: swnode: Make two functions static

2019-03-19 16:37:56 +01:00

syscore.c

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topology.c

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transport_class.c

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