83 	struct mutex dev_mutex;  member
235 	mutex_lock(&dev->dev_mutex);  in ubiblock_open()
264 	mutex_unlock(&dev->dev_mutex);  in ubiblock_open()
268 	mutex_unlock(&dev->dev_mutex);  in ubiblock_open()
276 	mutex_lock(&dev->dev_mutex);  in ubiblock_release()
282 	mutex_unlock(&dev->dev_mutex);  in ubiblock_release()
377 	mutex_init(&dev->dev_mutex);  in ubiblock_create()
477 	mutex_lock(&dev->dev_mutex);  in ubiblock_remove()
486 	mutex_unlock(&dev->dev_mutex);  in ubiblock_remove()
493 	mutex_unlock(&dev->dev_mutex);  in ubiblock_remove()
528 	mutex_lock(&dev->dev_mutex);  in ubiblock_resize()
535 	mutex_unlock(&dev->dev_mutex);  in ubiblock_resize()