94 	struct mutex dev_mutex;  member
229 	mutex_lock(&dev->dev_mutex);  in ubiblock_open()
259 	mutex_unlock(&dev->dev_mutex);  in ubiblock_open()
263 	mutex_unlock(&dev->dev_mutex);  in ubiblock_open()
271 	mutex_lock(&dev->dev_mutex);  in ubiblock_release()
277 	mutex_unlock(&dev->dev_mutex);  in ubiblock_release()
377 	mutex_init(&dev->dev_mutex);  in ubiblock_create()
481 	mutex_lock(&dev->dev_mutex);  in ubiblock_remove()
483 		mutex_unlock(&dev->dev_mutex);  in ubiblock_remove()
493 	mutex_unlock(&dev->dev_mutex);  in ubiblock_remove()
521 	mutex_lock(&dev->dev_mutex);  in ubiblock_resize()
528 	mutex_unlock(&dev->dev_mutex);  in ubiblock_resize()