diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index f17e3ea041c0..ed5de58c340f 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -295,11 +295,22 @@ static int memory_block_change_state(struct memory_block *mem,
 
 	ret = memory_block_action(mem->start_section_nr, to_state);
 
-	if (ret)
+	if (ret) {
 		mem->state = from_state_req;
-	else
-		mem->state = to_state;
+		goto out;
+	}
 
+	mem->state = to_state;
+	switch (mem->state) {
+	case MEM_OFFLINE:
+		kobject_uevent(&mem->dev.kobj, KOBJ_OFFLINE);
+		break;
+	case MEM_ONLINE:
+		kobject_uevent(&mem->dev.kobj, KOBJ_ONLINE);
+		break;
+	default:
+		break;
+	}
 out:
 	mutex_unlock(&mem->state_mutex);
 	return ret;