1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/s390/char/sclp_config.c b/drivers/s390/char/sclp_config.c
index 194ffd5c8580..039b2074db7e 100644
--- a/drivers/s390/char/sclp_config.c
+++ b/drivers/s390/char/sclp_config.c
@@ -60,7 +60,9 @@ static void sclp_cpu_capability_notify(struct work_struct *work)
 
 static void __ref sclp_cpu_change_notify(struct work_struct *work)
 {
+        lock_device_hotplug();
         smp_rescan_cpus();
+        unlock_device_hotplug();
 }
 
 static void sclp_conf_receiver_fn(struct evbuf_header *evbuf)