79 	struct roccat_reader *reader = file->private_data;  in roccat_read()  local
80 	struct roccat_device *device = reader->device;  in roccat_read()
88 	if (reader->cbuf_start == device->cbuf_end) {  in roccat_read()
93 		while (reader->cbuf_start == device->cbuf_end) {  in roccat_read()
121 	report = &device->cbuf[reader->cbuf_start];  in roccat_read()
133 	reader->cbuf_start = (reader->cbuf_start + 1) % ROCCAT_CBUF_SIZE;  in roccat_read()
142 	struct roccat_reader *reader = file->private_data;  in roccat_poll()  local
143 	poll_wait(file, &reader->device->wait, wait);  in roccat_poll()
144 	if (reader->cbuf_start != reader->device->cbuf_end)  in roccat_poll()
146 	if (!reader->device->exist)  in roccat_poll()
154 	struct roccat_reader *reader;  in roccat_open()  local
158 	reader = kzalloc(sizeof(struct roccat_reader), GFP_KERNEL);  in roccat_open()
159 	if (!reader)  in roccat_open()
190 	reader->device = device;  in roccat_open()
192 	reader->cbuf_start = device->cbuf_end;  in roccat_open()
194 	list_add_tail(&reader->node, &device->readers);  in roccat_open()
195 	file->private_data = reader;  in roccat_open()
202 		kfree(reader);  in roccat_open()
209 	struct roccat_reader *reader = file->private_data;  in roccat_release()  local
222 	list_del(&reader->node);  in roccat_release()
224 	kfree(reader);  in roccat_release()
253 	struct roccat_reader *reader;  in roccat_report_event()  local
271 	list_for_each_entry(reader, &device->readers, node) {  in roccat_report_event()
278 		if (reader->cbuf_start == device->cbuf_end)  in roccat_report_event()
279 			reader->cbuf_start = (reader->cbuf_start + 1) % ROCCAT_CBUF_SIZE;  in roccat_report_event()