140 	ret = __trace_define_field(&ftrace_common_fields, #type,	\
145 	if (ret)							\
146 		return ret;
150 	int ret;  in trace_define_common_fields()  local
158 	return ret;  in trace_define_common_fields()
248 	int ret = 0;  in __ftrace_event_enable_disable()  local
313 			ret = call->class->reg(call, TRACE_REG_REGISTER, file);  in __ftrace_event_enable_disable()
314 			if (ret) {  in __ftrace_event_enable_disable()
328 	return ret;  in __ftrace_event_enable_disable()
404 	int ret = -EINVAL;  in __ftrace_set_clr_event()  local
430 		ret = 0;  in __ftrace_set_clr_event()
434 	return ret;  in __ftrace_set_clr_event()
498 	ssize_t read, ret;  in ftrace_event_write()  local
503 	ret = tracing_update_buffers();  in ftrace_event_write()
504 	if (ret < 0)  in ftrace_event_write()
505 		return ret;  in ftrace_event_write()
520 		ret = ftrace_set_clr_event(tr, parser.buffer + !set, set);  in ftrace_event_write()
521 		if (ret)  in ftrace_event_write()
525 	ret = read;  in ftrace_event_write()
530 	return ret;  in ftrace_event_write()
648 	int ret;  in event_enable_write()  local
653 	ret = kstrtoul_from_user(ubuf, cnt, 10, &val);  in event_enable_write()
654 	if (ret)  in event_enable_write()
655 		return ret;  in event_enable_write()
657 	ret = tracing_update_buffers();  in event_enable_write()
658 	if (ret < 0)  in event_enable_write()
659 		return ret;  in event_enable_write()
665 		ret = ftrace_event_enable_disable(file, val);  in event_enable_write()
675 	return ret ? ret : cnt;  in event_enable_write()
690 	int ret;  in system_enable_read()  local
719 	ret = simple_read_from_buffer(ubuf, cnt, ppos, buf, 2);  in system_enable_read()
721 	return ret;  in system_enable_read()
732 	ssize_t ret;  in system_enable_write()  local
734 	ret = kstrtoul_from_user(ubuf, cnt, 10, &val);  in system_enable_write()
735 	if (ret)  in system_enable_write()
736 		return ret;  in system_enable_write()
738 	ret = tracing_update_buffers();  in system_enable_write()
739 	if (ret < 0)  in system_enable_write()
740 		return ret;  in system_enable_write()
752 	ret = __ftrace_set_clr_event(dir->tr, NULL, name, NULL, val);  in system_enable_write()
753 	if (ret)  in system_enable_write()
756 	ret = cnt;  in system_enable_write()
761 	return ret;  in system_enable_write()
894 	int ret;  in trace_format_open()  local
896 	ret = seq_open(file, &trace_format_seq_ops);  in trace_format_open()
897 	if (ret < 0)  in trace_format_open()
898 		return ret;  in trace_format_open()
992 	int ret;  in subsystem_open()  local
1017 	ret = tracing_open_generic(inode, filp);  in subsystem_open()
1018 	if (ret < 0)  in subsystem_open()
1021 	return ret;  in subsystem_open()
1028 	int ret;  in system_tr_open()  local
1037 	ret = tracing_open_generic(inode, filp);  in system_tr_open()
1038 	if (ret < 0)  in system_tr_open()
1043 	return ret;  in system_tr_open()
1238 	int ret;  in ftrace_event_open()  local
1240 	ret = seq_open(file, seq_ops);  in ftrace_event_open()
1241 	if (ret < 0)  in ftrace_event_open()
1242 		return ret;  in ftrace_event_open()
1247 	return ret;  in ftrace_event_open()
1387 	int ret;  in event_create_dir()  local
1423 		ret = call->class->define_fields(call);  in event_create_dir()
1424 		if (ret < 0) {  in event_create_dir()
1502 	int ret = 0;  in event_init()  local
1508 		ret = call->class->raw_init(call);  in event_init()
1509 		if (ret < 0 && ret != -ENOSYS)  in event_init()
1514 	return ret;  in event_init()
1520 	int ret;  in __register_event()  local
1522 	ret = event_init(call);  in __register_event()
1523 	if (ret < 0)  in __register_event()
1524 		return ret;  in __register_event()
1593 	int ret;  in trace_add_event_call()  local
1596 	ret = __register_event(call, NULL);  in trace_add_event_call()
1597 	if (ret >= 0)  in trace_add_event_call()
1601 	return ret;  in trace_add_event_call()
1815 	int ret;  in __trace_add_event_dirs()  local
1829 			ret = __trace_add_new_mod_event(call, tr, file_ops);  in __trace_add_event_dirs()
1830 			if (ret < 0)  in __trace_add_event_dirs()
1835 		ret = __trace_add_new_event(call, tr,  in __trace_add_event_dirs()
1840 		if (ret < 0)  in __trace_add_event_dirs()
2011 	int ret;  in event_enable_func()  local
2028 	ret = -EINVAL;  in event_enable_func()
2042 		ret = 0;  in event_enable_func()
2046 	ret = -ENOMEM;  in event_enable_func()
2060 	ret = -EINVAL;  in event_enable_func()
2068 	ret = kstrtoul(number, 0, &data->count);  in event_enable_func()
2069 	if (ret)  in event_enable_func()
2074 	ret = try_module_get(file->event_call->mod);  in event_enable_func()
2075 	if (!ret) {  in event_enable_func()
2076 		ret = -EBUSY;  in event_enable_func()
2080 	ret = __ftrace_event_enable_disable(file, 1, 1);  in event_enable_func()
2081 	if (ret < 0)  in event_enable_func()
2083 	ret = register_ftrace_function_probe(glob, ops, data);  in event_enable_func()
2089 	if (!ret) {  in event_enable_func()
2090 		ret = -ENOENT;  in event_enable_func()
2092 	} else if (ret < 0)  in event_enable_func()
2095 	ret = 0;  in event_enable_func()
2098 	return ret;  in event_enable_func()
2121 	int ret;  in register_event_cmds()  local
2123 	ret = register_ftrace_command(&event_enable_cmd);  in register_event_cmds()
2124 	if (WARN_ON(ret < 0))  in register_event_cmds()
2125 		return ret;  in register_event_cmds()
2126 	ret = register_ftrace_command(&event_disable_cmd);  in register_event_cmds()
2127 	if (WARN_ON(ret < 0))  in register_event_cmds()
2129 	return ret;  in register_event_cmds()
2146 	int ret;  in __trace_early_add_event_dirs()  local
2150 		ret = event_create_dir(tr->event_dir, file,  in __trace_early_add_event_dirs()
2155 		if (ret < 0)  in __trace_early_add_event_dirs()
2171 	int ret;  in __trace_early_add_events()  local
2178 		ret = __trace_early_add_new_event(call, tr);  in __trace_early_add_events()
2179 		if (ret < 0)  in __trace_early_add_events()
2287 	int ret;  in event_trace_add_tracer()  local
2291 	ret = create_event_toplevel_files(parent, tr);  in event_trace_add_tracer()
2292 	if (ret)  in event_trace_add_tracer()
2302 	return ret;  in event_trace_add_tracer()
2312 	int ret;  in early_event_add_tracer()  local
2316 	ret = create_event_toplevel_files(parent, tr);  in early_event_add_tracer()
2317 	if (ret)  in early_event_add_tracer()
2327 	return ret;  in early_event_add_tracer()
2362 	int ret;  in event_trace_enable()  local
2367 		ret = event_init(call);  in event_trace_enable()
2368 		if (!ret)  in event_trace_enable()
2388 		ret = ftrace_set_clr_event(tr, token, 1);  in event_trace_enable()
2389 		if (ret)  in event_trace_enable()
2405 	int ret;  in event_trace_init()  local
2422 	ret = early_event_add_tracer(d_tracer, tr);  in event_trace_init()
2423 	if (ret)  in event_trace_init()
2424 		return ret;  in event_trace_init()
2426 	ret = register_module_notifier(&trace_module_nb);  in event_trace_init()
2427 	if (ret)  in event_trace_init()
2497 	int ret;  in event_trace_self_tests()  local
2556 		ret = __ftrace_set_clr_event(tr, NULL, system->name, NULL, 1);  in event_trace_self_tests()
2557 		if (WARN_ON_ONCE(ret)) {  in event_trace_self_tests()
2565 		ret = __ftrace_set_clr_event(tr, NULL, system->name, NULL, 0);  in event_trace_self_tests()
2566 		if (WARN_ON_ONCE(ret)) {  in event_trace_self_tests()
2580 	ret = __ftrace_set_clr_event(tr, NULL, NULL, NULL, 1);  in event_trace_self_tests()
2581 	if (WARN_ON_ONCE(ret)) {  in event_trace_self_tests()
2589 	ret = __ftrace_set_clr_event(tr, NULL, NULL, NULL, 0);  in event_trace_self_tests()
2590 	if (WARN_ON_ONCE(ret)) {  in event_trace_self_tests()
2648 	int ret;  in event_trace_self_test_with_function()  local
2649 	ret = register_ftrace_function(&trace_ops);  in event_trace_self_test_with_function()
2650 	if (WARN_ON(ret < 0)) {  in event_trace_self_test_with_function()