202 	struct xenbus_transaction xbt;  in shutdown_handler()  local
219 	err = xenbus_transaction_start(&xbt);  in shutdown_handler()
223 	str = (char *)xenbus_read(xbt, "control", "shutdown", NULL);  in shutdown_handler()
226 		xenbus_transaction_end(xbt, 1);  in shutdown_handler()
237 		xenbus_write(xbt, "control", "shutdown", "");  in shutdown_handler()
239 	err = xenbus_transaction_end(xbt, 0);  in shutdown_handler()
260 	struct xenbus_transaction xbt;  in sysrq_handler()  local
264 	err = xenbus_transaction_start(&xbt);  in sysrq_handler()
267 	if (!xenbus_scanf(xbt, "control", "sysrq", "%c", &sysrq_key)) {  in sysrq_handler()
270 		xenbus_transaction_end(xbt, 1);  in sysrq_handler()
275 		xenbus_printf(xbt, "control", "sysrq", "%c", '\0');  in sysrq_handler()
277 	err = xenbus_transaction_end(xbt, 0);  in sysrq_handler()