1 files changed, 2 insertions, 0 deletions

diff --git a/kernel/power/user.c b/kernel/power/user.c
index 63368163e98d..72e8f4fd616d 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -201,6 +201,7 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
         if (!mutex_trylock(&pm_mutex))
                 return -EBUSY;
 
+        lock_device_hotplug();
         data = filp->private_data;
 
         switch (cmd) {
@@ -373,6 +374,7 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
 
         }
 
+        unlock_device_hotplug();
         mutex_unlock(&pm_mutex);
 
         return error;