65 	int err;  in xen_suspend()  local
69 	err = syscore_suspend();  in xen_suspend()
70 	if (err) {  in xen_suspend()
71 		pr_err("%s: system core suspend failed: %d\n", __func__, err);  in xen_suspend()
72 		return err;  in xen_suspend()
99 	int err;  in do_suspend()  local
104 	err = freeze_processes();  in do_suspend()
105 	if (err) {  in do_suspend()
106 		pr_err("%s: freeze processes failed %d\n", __func__, err);  in do_suspend()
110 	err = freeze_kernel_threads();  in do_suspend()
111 	if (err) {  in do_suspend()
112 		pr_err("%s: freeze kernel threads failed %d\n", __func__, err);  in do_suspend()
116 	err = dpm_suspend_start(PMSG_FREEZE);  in do_suspend()
117 	if (err) {  in do_suspend()
118 		pr_err("%s: dpm_suspend_start %d\n", __func__, err);  in do_suspend()
125 	err = dpm_suspend_end(PMSG_FREEZE);  in do_suspend()
126 	if (err) {  in do_suspend()
127 		pr_err("dpm_suspend_end failed: %d\n", err);  in do_suspend()
136 	err = stop_machine(xen_suspend, &si, cpumask_of(0));  in do_suspend()
148 	if (err) {  in do_suspend()
149 		pr_err("failed to start xen_suspend: %d\n", err);  in do_suspend()
225 	int err;  in shutdown_handler()  local
232 	err = xenbus_transaction_start(&xbt);  in shutdown_handler()
233 	if (err)  in shutdown_handler()
252 	err = xenbus_transaction_end(xbt, 0);  in shutdown_handler()
253 	if (err == -EAGAIN) {  in shutdown_handler()
274 	int err;  in sysrq_handler()  local
277 	err = xenbus_transaction_start(&xbt);  in sysrq_handler()
278 	if (err)  in sysrq_handler()
280 	err = xenbus_scanf(xbt, "control", "sysrq", "%c", &sysrq_key);  in sysrq_handler()
281 	if (err < 0) {  in sysrq_handler()
289 		if (err != -ENOENT && err != -ERANGE)  in sysrq_handler()
291 			       err);  in sysrq_handler()
297 		err = xenbus_printf(xbt, "control", "sysrq", "%c", '\0');  in sysrq_handler()
298 		if (err) {  in sysrq_handler()
300 			       __func__, err);  in sysrq_handler()
306 	err = xenbus_transaction_end(xbt, 0);  in sysrq_handler()
307 	if (err == -EAGAIN)  in sysrq_handler()
331 	int err;  in setup_shutdown_watcher()  local
336 	err = register_xenbus_watch(&shutdown_watch);  in setup_shutdown_watcher()
337 	if (err) {  in setup_shutdown_watcher()
339 		return err;  in setup_shutdown_watcher()
344 	err = register_xenbus_watch(&sysrq_watch);  in setup_shutdown_watcher()
345 	if (err) {  in setup_shutdown_watcher()
347 		return err;  in setup_shutdown_watcher()
356 		err = xenbus_printf(XBT_NIL, "control", node, "%u", 1);  in setup_shutdown_watcher()
357 		if (err) {  in setup_shutdown_watcher()
359 				err, node);  in setup_shutdown_watcher()
360 			return err;  in setup_shutdown_watcher()