linux/drivers/base
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
..
firmware_loader
power PM / Domains: Avoid a potential deadlock 2019-03-19 22:58:04 +01:00
regmap
test
Kconfig
Makefile
arch_topology.c
attribute_container.c
base.h
bus.c
cacheinfo.c
class.c
component.c
container.c
core.c
cpu.c
dd.c
devcon.c
devcoredump.c
devres.c
devtmpfs.c
driver.c
firmware.c
hypervisor.c
init.c
isa.c
map.c
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
node.c
pinctrl.c
platform-msi.c
platform.c
property.c
soc.c
swnode.c drivers: base: swnode: Make two functions static 2019-03-19 16:37:56 +01:00
syscore.c
topology.c
transport_class.c