1155 	struct f_printer_opts *opts = to_f_printer_opts(item);  in printer_attr_release()  local
1157 	usb_put_function_instance(&opts->func_inst);  in printer_attr_release()
1166 static ssize_t f_printer_opts_pnp_string_show(struct f_printer_opts *opts,  in f_printer_opts_pnp_string_show()  argument
1171 	mutex_lock(&opts->lock);  in f_printer_opts_pnp_string_show()
1172 	result = strlcpy(page, opts->pnp_string + 2, PNP_STRING_LEN - 2);  in f_printer_opts_pnp_string_show()
1173 	mutex_unlock(&opts->lock);  in f_printer_opts_pnp_string_show()
1178 static ssize_t f_printer_opts_pnp_string_store(struct f_printer_opts *opts,  in f_printer_opts_pnp_string_store()  argument
1183 	mutex_lock(&opts->lock);  in f_printer_opts_pnp_string_store()
1184 	result = strlcpy(opts->pnp_string + 2, page, PNP_STRING_LEN - 2);  in f_printer_opts_pnp_string_store()
1185 	l = strlen(opts->pnp_string + 2) + 2;  in f_printer_opts_pnp_string_store()
1186 	opts->pnp_string[0] = (l >> 8) & 0xFF;  in f_printer_opts_pnp_string_store()
1187 	opts->pnp_string[1] = l & 0xFF;  in f_printer_opts_pnp_string_store()
1188 	mutex_unlock(&opts->lock);  in f_printer_opts_pnp_string_store()
1198 static ssize_t f_printer_opts_q_len_show(struct f_printer_opts *opts,  in f_printer_opts_q_len_show()  argument
1203 	mutex_lock(&opts->lock);  in f_printer_opts_q_len_show()
1204 	result = sprintf(page, "%d\n", opts->q_len);  in f_printer_opts_q_len_show()
1205 	mutex_unlock(&opts->lock);  in f_printer_opts_q_len_show()
1210 static ssize_t f_printer_opts_q_len_store(struct f_printer_opts *opts,  in f_printer_opts_q_len_store()  argument
1216 	mutex_lock(&opts->lock);  in f_printer_opts_q_len_store()
1217 	if (opts->refcnt) {  in f_printer_opts_q_len_store()
1226 	opts->q_len = (unsigned)num;  in f_printer_opts_q_len_store()
1229 	mutex_unlock(&opts->lock);  in f_printer_opts_q_len_store()
1264 	struct f_printer_opts *opts;  in gprinter_free_inst()  local
1266 	opts = container_of(f, struct f_printer_opts, func_inst);  in gprinter_free_inst()
1270 	gprinter_put_minor(opts->minor);  in gprinter_free_inst()
1276 	kfree(opts);  in gprinter_free_inst()
1281 	struct f_printer_opts *opts;  in gprinter_alloc_inst()  local
1285 	opts = kzalloc(sizeof(*opts), GFP_KERNEL);  in gprinter_alloc_inst()
1286 	if (!opts)  in gprinter_alloc_inst()
1289 	mutex_init(&opts->lock);  in gprinter_alloc_inst()
1290 	opts->func_inst.free_func_inst = gprinter_free_inst;  in gprinter_alloc_inst()
1291 	ret = &opts->func_inst;  in gprinter_alloc_inst()
1299 			kfree(opts);  in gprinter_alloc_inst()
1304 	opts->minor = gprinter_get_minor();  in gprinter_alloc_inst()
1305 	if (opts->minor < 0) {  in gprinter_alloc_inst()
1306 		ret = ERR_PTR(opts->minor);  in gprinter_alloc_inst()
1307 		kfree(opts);  in gprinter_alloc_inst()
1312 	config_group_init_type_name(&opts->func_inst.group, "",  in gprinter_alloc_inst()
1323 	struct f_printer_opts *opts;  in gprinter_free()  local
1325 	opts = container_of(f->fi, struct f_printer_opts, func_inst);  in gprinter_free()
1327 	mutex_lock(&opts->lock);  in gprinter_free()
1328 	--opts->refcnt;  in gprinter_free()
1329 	mutex_unlock(&opts->lock);  in gprinter_free()
1379 	struct f_printer_opts	*opts;  in gprinter_alloc()  local
1381 	opts = container_of(fi, struct f_printer_opts, func_inst);  in gprinter_alloc()
1383 	mutex_lock(&opts->lock);  in gprinter_alloc()
1384 	if (opts->minor >= minors) {  in gprinter_alloc()
1385 		mutex_unlock(&opts->lock);  in gprinter_alloc()
1391 		mutex_unlock(&opts->lock);  in gprinter_alloc()
1395 	++opts->refcnt;  in gprinter_alloc()
1396 	dev->minor = opts->minor;  in gprinter_alloc()
1397 	dev->pnp_string = opts->pnp_string;  in gprinter_alloc()
1398 	dev->q_len = opts->q_len;  in gprinter_alloc()
1399 	mutex_unlock(&opts->lock);  in gprinter_alloc()