1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 76d0fe88eb1c..91b34812cd84 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -95,6 +95,7 @@ struct thermal_cooling_device {
         void *devdata;
         const struct thermal_cooling_device_ops *ops;
         bool updated; /* true if the cooling device does not need update */
+        struct mutex lock; /* protect thermal_instances list */
         struct list_head thermal_instances;
         struct list_head node;
 };