1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 0bf2dc11cdb8..b79badd0f158 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -44,6 +44,8 @@ static ssize_t store_online(struct sys_device *dev, const char *buf,
                 ret = smp_prepare_cpu(cpu->sysdev.id);
                 if (!ret)
                         ret = cpu_up(cpu->sysdev.id);
+                if (!ret)
+                        kobject_hotplug(&dev->kobj, KOBJ_ONLINE);
                 break;
         default:
                 ret = -EINVAL;