402 	if (!zram->backing_dev)  in reset_bdev()
408 	filp_close(zram->backing_dev, NULL);  in reset_bdev()
409 	zram->backing_dev = NULL;  in reset_bdev()
425 	file = zram->backing_dev;  in backing_dev_show()
451 	struct file *backing_dev = NULL;  in backing_dev_store()  local
477 	backing_dev = filp_open(file_name, O_RDWR|O_LARGEFILE, 0);  in backing_dev_store()
478 	if (IS_ERR(backing_dev)) {  in backing_dev_store()
479 		err = PTR_ERR(backing_dev);  in backing_dev_store()
480 		backing_dev = NULL;  in backing_dev_store()
484 	mapping = backing_dev->f_mapping;  in backing_dev_store()
512 	zram->backing_dev = backing_dev;  in backing_dev_store()
538 	if (backing_dev)  in backing_dev_store()
539 		filp_close(backing_dev, NULL);  in backing_dev_store()
655 	if (!zram->backing_dev) {  in writeback_store()
1846 static DEVICE_ATTR_RW(backing_dev);