38 	struct device *cd;  in dca_sysfs_add_req()  local
41 	cd = device_create(dca_class, dca->cd, MKDEV(0, slot + 1), NULL,  in dca_sysfs_add_req()
43 	if (IS_ERR(cd))  in dca_sysfs_add_req()
44 		return PTR_ERR(cd);  in dca_sysfs_add_req()
55 	struct device *cd;  in dca_sysfs_add_provider()  local
70 	cd = device_create(dca_class, dev, MKDEV(0, 0), NULL, "dca%d", dca->id);  in dca_sysfs_add_provider()
71 	if (IS_ERR(cd)) {  in dca_sysfs_add_provider()
75 		return PTR_ERR(cd);  in dca_sysfs_add_provider()
77 	dca->cd = cd;  in dca_sysfs_add_provider()
83 	device_unregister(dca->cd);  in dca_sysfs_remove_provider()
84 	dca->cd = NULL;  in dca_sysfs_remove_provider()