1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index 01fbe48e8155..c130536e0ab0 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -77,6 +77,7 @@ struct regmap {
         unsigned int debugfs_tot_len;
 
         struct list_head debugfs_off_cache;
+        struct mutex cache_lock;
 #endif
 
         unsigned int max_register;