diff options
Diffstat (limited to 'arch/x86/kernel/topology.c')
| -rw-r--r-- | arch/x86/kernel/topology.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/topology.c b/arch/x86/kernel/topology.c index 5823bbd668f4..a3f35ebb3b52 100644 --- a/arch/x86/kernel/topology.c +++ b/arch/x86/kernel/topology.c @@ -65,6 +65,7 @@ int __ref _debug_hotplug_cpu(int cpu, int action) if (!cpu_is_hotpluggable(cpu)) return -EINVAL; + lock_device_hotplug(); cpu_hotplug_driver_lock(); switch (action) { @@ -91,6 +92,7 @@ int __ref _debug_hotplug_cpu(int cpu, int action) } cpu_hotplug_driver_unlock(); + unlock_device_hotplug(); return ret; } |