diff options
| author | zhong jiang <zhongjiang@huawei.com> | 2019-04-08 12:07:17 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-01 09:14:14 +0100 |
| commit | 058aa7307046ee8afd4386bb9710df5518d94569 (patch) | |
| tree | 414808d77a64ac81516572489e5f051583718190 /net | |
| parent | f15199f288f9423d813a85a3841e701a74743e34 (diff) | |
mm/memory_hotplug: Do not unlock when fails to take the device_hotplug_lock
[ Upstream commit d2ab99403ee00d8014e651728a4702ea1ae5e52c ]
When adding the memory by probing memory block in sysfs interface, there is an
obvious issue that we will unlock the device_hotplug_lock when fails to takes it.
That issue was introduced in Commit 8df1d0e4a265
("mm/memory_hotplug: make add_memory() take the device_hotplug_lock")
We should drop out in time when fails to take the device_hotplug_lock.
Fixes: 8df1d0e4a265 ("mm/memory_hotplug: make add_memory() take the device_hotplug_lock")
Reported-by: Yang yingliang <yangyingliang@huawei.com>
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions