1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index ce1f21608b16..41d6a7555c6b 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -911,6 +911,11 @@ static inline void device_unlock(struct device *dev)
         mutex_unlock(&dev->mutex);
 }
 
+static inline void device_lock_assert(struct device *dev)
+{
+        lockdep_assert_held(&dev->mutex);
+}
+
 void driver_init(void);
 
 /*