1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index bfc90b8547f2..0da5865df5b1 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -49,8 +49,10 @@ struct regmap_async {
 };
 
 struct regmap {
-        struct mutex mutex;
-        spinlock_t spinlock;
+        union {
+                struct mutex mutex;
+                spinlock_t spinlock;
+        };
         unsigned long spinlock_flags;
         regmap_lock lock;
         regmap_unlock unlock;