null_add_dev      199 drivers/block/null_blk_main.c static int null_add_dev(struct nullb_device *dev);
null_add_dev      322 drivers/block/null_blk_main.c 		if (null_add_dev(dev)) {
null_add_dev     1816 drivers/block/null_blk_main.c 		ret = null_add_dev(dev);