diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index 136d6adf3120..3b1c2f28d585 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -294,6 +294,7 @@ void regcache_exit(struct regmap *map)
 	regcache_locked_exit(map);
 
 	kfree(map->reg_defaults);
+	map->reg_defaults = NULL;
 }
 
 /**