1 // SPDX-License-Identifier: GPL-2.0+
37 	int n = 0;  in smsdvb_print_dvb_stats()  local
40 	spin_lock(&debug_data->lock);  in smsdvb_print_dvb_stats()
41 	if (debug_data->stats_count) {  in smsdvb_print_dvb_stats()
42 		spin_unlock(&debug_data->lock);  in smsdvb_print_dvb_stats()
46 	buf = debug_data->stats_data;  in smsdvb_print_dvb_stats()
48 	n += sysfs_emit_at(buf, n, "is_rf_locked = %d\n", p->is_rf_locked);  in smsdvb_print_dvb_stats()
49 	n += sysfs_emit_at(buf, n, "is_demod_locked = %d\n", p->is_demod_locked);  in smsdvb_print_dvb_stats()
50 	n += sysfs_emit_at(buf, n, "is_external_lna_on = %d\n", p->is_external_lna_on);  in smsdvb_print_dvb_stats()
51 	n += sysfs_emit_at(buf, n, "SNR = %d\n", p->SNR);  in smsdvb_print_dvb_stats()
52 	n += sysfs_emit_at(buf, n, "ber = %d\n", p->ber);  in smsdvb_print_dvb_stats()
53 	n += sysfs_emit_at(buf, n, "FIB_CRC = %d\n", p->FIB_CRC);  in smsdvb_print_dvb_stats()
54 	n += sysfs_emit_at(buf, n, "ts_per = %d\n", p->ts_per);  in smsdvb_print_dvb_stats()
55 	n += sysfs_emit_at(buf, n, "MFER = %d\n", p->MFER);  in smsdvb_print_dvb_stats()
56 	n += sysfs_emit_at(buf, n, "RSSI = %d\n", p->RSSI);  in smsdvb_print_dvb_stats()
57 	n += sysfs_emit_at(buf, n, "in_band_pwr = %d\n", p->in_band_pwr);  in smsdvb_print_dvb_stats()
58 	n += sysfs_emit_at(buf, n, "carrier_offset = %d\n", p->carrier_offset);  in smsdvb_print_dvb_stats()
59 	n += sysfs_emit_at(buf, n, "modem_state = %d\n", p->modem_state);  in smsdvb_print_dvb_stats()
60 	n += sysfs_emit_at(buf, n, "frequency = %d\n", p->frequency);  in smsdvb_print_dvb_stats()
61 	n += sysfs_emit_at(buf, n, "bandwidth = %d\n", p->bandwidth);  in smsdvb_print_dvb_stats()
62 	n += sysfs_emit_at(buf, n, "transmission_mode = %d\n", p->transmission_mode);  in smsdvb_print_dvb_stats()
63 	n += sysfs_emit_at(buf, n, "modem_state = %d\n", p->modem_state);  in smsdvb_print_dvb_stats()
64 	n += sysfs_emit_at(buf, n, "guard_interval = %d\n", p->guard_interval);  in smsdvb_print_dvb_stats()
65 	n += sysfs_emit_at(buf, n, "code_rate = %d\n", p->code_rate);  in smsdvb_print_dvb_stats()
66 	n += sysfs_emit_at(buf, n, "lp_code_rate = %d\n", p->lp_code_rate);  in smsdvb_print_dvb_stats()
67 	n += sysfs_emit_at(buf, n, "hierarchy = %d\n", p->hierarchy);  in smsdvb_print_dvb_stats()
68 	n += sysfs_emit_at(buf, n, "constellation = %d\n", p->constellation);  in smsdvb_print_dvb_stats()
69 	n += sysfs_emit_at(buf, n, "burst_size = %d\n", p->burst_size);  in smsdvb_print_dvb_stats()
70 	n += sysfs_emit_at(buf, n, "burst_duration = %d\n", p->burst_duration);  in smsdvb_print_dvb_stats()
71 	n += sysfs_emit_at(buf, n, "burst_cycle_time = %d\n", p->burst_cycle_time);  in smsdvb_print_dvb_stats()
72 	n += sysfs_emit_at(buf, n, "calc_burst_cycle_time = %d\n", p->calc_burst_cycle_time);  in smsdvb_print_dvb_stats()
73 	n += sysfs_emit_at(buf, n, "num_of_rows = %d\n", p->num_of_rows);  in smsdvb_print_dvb_stats()
74 	n += sysfs_emit_at(buf, n, "num_of_padd_cols = %d\n", p->num_of_padd_cols);  in smsdvb_print_dvb_stats()
75 	n += sysfs_emit_at(buf, n, "num_of_punct_cols = %d\n", p->num_of_punct_cols);  in smsdvb_print_dvb_stats()
76 	n += sysfs_emit_at(buf, n, "error_ts_packets = %d\n", p->error_ts_packets);  in smsdvb_print_dvb_stats()
77 	n += sysfs_emit_at(buf, n, "total_ts_packets = %d\n", p->total_ts_packets);  in smsdvb_print_dvb_stats()
78 	n += sysfs_emit_at(buf, n, "num_of_valid_mpe_tlbs = %d\n", p->num_of_valid_mpe_tlbs);  in smsdvb_print_dvb_stats()
79 	n += sysfs_emit_at(buf, n, "num_of_invalid_mpe_tlbs = %d\n", p->num_of_invalid_mpe_tlbs);  in smsdvb_print_dvb_stats()
80 	n += sysfs_emit_at(buf, n, "num_of_corrected_mpe_tlbs = %d\n",  in smsdvb_print_dvb_stats()
81 			   p->num_of_corrected_mpe_tlbs);  in smsdvb_print_dvb_stats()
82 	n += sysfs_emit_at(buf, n, "ber_error_count = %d\n", p->ber_error_count);  in smsdvb_print_dvb_stats()
83 	n += sysfs_emit_at(buf, n, "ber_bit_count = %d\n", p->ber_bit_count);  in smsdvb_print_dvb_stats()
84 	n += sysfs_emit_at(buf, n, "sms_to_host_tx_errors = %d\n", p->sms_to_host_tx_errors);  in smsdvb_print_dvb_stats()
85 	n += sysfs_emit_at(buf, n, "pre_ber = %d\n", p->pre_ber);  in smsdvb_print_dvb_stats()
86 	n += sysfs_emit_at(buf, n, "cell_id = %d\n", p->cell_id);  in smsdvb_print_dvb_stats()
87 	n += sysfs_emit_at(buf, n, "dvbh_srv_ind_hp = %d\n", p->dvbh_srv_ind_hp);  in smsdvb_print_dvb_stats()
88 	n += sysfs_emit_at(buf, n, "dvbh_srv_ind_lp = %d\n", p->dvbh_srv_ind_lp);  in smsdvb_print_dvb_stats()
89 	n += sysfs_emit_at(buf, n, "num_mpe_received = %d\n", p->num_mpe_received);  in smsdvb_print_dvb_stats()
91 	debug_data->stats_count = n;  in smsdvb_print_dvb_stats()
92 	spin_unlock(&debug_data->lock);  in smsdvb_print_dvb_stats()
93 	wake_up(&debug_data->stats_queue);  in smsdvb_print_dvb_stats()
99 	int i, n = 0;  in smsdvb_print_isdb_stats()  local
102 	spin_lock(&debug_data->lock);  in smsdvb_print_isdb_stats()
103 	if (debug_data->stats_count) {  in smsdvb_print_isdb_stats()
104 		spin_unlock(&debug_data->lock);  in smsdvb_print_isdb_stats()
108 	buf = debug_data->stats_data;  in smsdvb_print_isdb_stats()
110 	n += sysfs_emit_at(buf, n, "statistics_type = %d\t", p->statistics_type);  in smsdvb_print_isdb_stats()
111 	n += sysfs_emit_at(buf, n, "full_size = %d\n", p->full_size);  in smsdvb_print_isdb_stats()
113 	n += sysfs_emit_at(buf, n, "is_rf_locked = %d\t\t", p->is_rf_locked);  in smsdvb_print_isdb_stats()
114 	n += sysfs_emit_at(buf, n, "is_demod_locked = %d\t", p->is_demod_locked);  in smsdvb_print_isdb_stats()
115 	n += sysfs_emit_at(buf, n, "is_external_lna_on = %d\n", p->is_external_lna_on);  in smsdvb_print_isdb_stats()
116 	n += sysfs_emit_at(buf, n, "SNR = %d dB\t\t", p->SNR);  in smsdvb_print_isdb_stats()
117 	n += sysfs_emit_at(buf, n, "RSSI = %d dBm\t\t", p->RSSI);  in smsdvb_print_isdb_stats()
118 	n += sysfs_emit_at(buf, n, "in_band_pwr = %d dBm\n", p->in_band_pwr);  in smsdvb_print_isdb_stats()
119 	n += sysfs_emit_at(buf, n, "carrier_offset = %d\t", p->carrier_offset);  in smsdvb_print_isdb_stats()
120 	n += sysfs_emit_at(buf, n, "bandwidth = %d\t\t", p->bandwidth);  in smsdvb_print_isdb_stats()
121 	n += sysfs_emit_at(buf, n, "frequency = %d Hz\n", p->frequency);  in smsdvb_print_isdb_stats()
122 	n += sysfs_emit_at(buf, n, "transmission_mode = %d\t", p->transmission_mode);  in smsdvb_print_isdb_stats()
123 	n += sysfs_emit_at(buf, n, "modem_state = %d\t\t", p->modem_state);  in smsdvb_print_isdb_stats()
124 	n += sysfs_emit_at(buf, n, "guard_interval = %d\n", p->guard_interval);  in smsdvb_print_isdb_stats()
125 	n += sysfs_emit_at(buf, n, "system_type = %d\t\t", p->system_type);  in smsdvb_print_isdb_stats()
126 	n += sysfs_emit_at(buf, n, "partial_reception = %d\t", p->partial_reception);  in smsdvb_print_isdb_stats()
127 	n += sysfs_emit_at(buf, n, "num_of_layers = %d\n", p->num_of_layers);  in smsdvb_print_isdb_stats()
128 	n += sysfs_emit_at(buf, n, "sms_to_host_tx_errors = %d\n", p->sms_to_host_tx_errors);  in smsdvb_print_isdb_stats()
131 		if (p->layer_info[i].number_of_segments < 1 ||  in smsdvb_print_isdb_stats()
132 		    p->layer_info[i].number_of_segments > 13)  in smsdvb_print_isdb_stats()
135 		n += sysfs_emit_at(buf, n, "\nLayer %d\n", i);  in smsdvb_print_isdb_stats()
136 		n += sysfs_emit_at(buf, n, "\tcode_rate = %d\t", p->layer_info[i].code_rate);  in smsdvb_print_isdb_stats()
137 		n += sysfs_emit_at(buf, n, "constellation = %d\n", p->layer_info[i].constellation);  in smsdvb_print_isdb_stats()
138 		n += sysfs_emit_at(buf, n, "\tber = %-5d\t", p->layer_info[i].ber);  in smsdvb_print_isdb_stats()
139 		n += sysfs_emit_at(buf, n, "\tber_error_count = %-5d\t",  in smsdvb_print_isdb_stats()
140 				   p->layer_info[i].ber_error_count);  in smsdvb_print_isdb_stats()
141 		n += sysfs_emit_at(buf, n, "ber_bit_count = %-5d\n",  in smsdvb_print_isdb_stats()
142 				   p->layer_info[i].ber_bit_count);  in smsdvb_print_isdb_stats()
143 		n += sysfs_emit_at(buf, n, "\tpre_ber = %-5d\t", p->layer_info[i].pre_ber);  in smsdvb_print_isdb_stats()
144 		n += sysfs_emit_at(buf, n, "\tts_per = %-5d\n", p->layer_info[i].ts_per);  in smsdvb_print_isdb_stats()
145 		n += sysfs_emit_at(buf, n, "\terror_ts_packets = %-5d\t",  in smsdvb_print_isdb_stats()
146 				   p->layer_info[i].error_ts_packets);  in smsdvb_print_isdb_stats()
147 		n += sysfs_emit_at(buf, n, "total_ts_packets = %-5d\t",  in smsdvb_print_isdb_stats()
148 				   p->layer_info[i].total_ts_packets);  in smsdvb_print_isdb_stats()
149 		n += sysfs_emit_at(buf, n, "ti_ldepth_i = %d\n", p->layer_info[i].ti_ldepth_i);  in smsdvb_print_isdb_stats()
150 		n += sysfs_emit_at(buf, n, "\tnumber_of_segments = %d\t",  in smsdvb_print_isdb_stats()
151 				   p->layer_info[i].number_of_segments);  in smsdvb_print_isdb_stats()
152 		n += sysfs_emit_at(buf, n, "tmcc_errors = %d\n", p->layer_info[i].tmcc_errors);  in smsdvb_print_isdb_stats()
155 	debug_data->stats_count = n;  in smsdvb_print_isdb_stats()
156 	spin_unlock(&debug_data->lock);  in smsdvb_print_isdb_stats()
157 	wake_up(&debug_data->stats_queue);  in smsdvb_print_isdb_stats()
163 	int i, n = 0;  in smsdvb_print_isdb_stats_ex()  local
166 	spin_lock(&debug_data->lock);  in smsdvb_print_isdb_stats_ex()
167 	if (debug_data->stats_count) {  in smsdvb_print_isdb_stats_ex()
168 		spin_unlock(&debug_data->lock);  in smsdvb_print_isdb_stats_ex()
172 	buf = debug_data->stats_data;  in smsdvb_print_isdb_stats_ex()
174 	n += sysfs_emit_at(buf, n, "statistics_type = %d\t", p->statistics_type);  in smsdvb_print_isdb_stats_ex()
175 	n += sysfs_emit_at(buf, n, "full_size = %d\n", p->full_size);  in smsdvb_print_isdb_stats_ex()
177 	n += sysfs_emit_at(buf, n, "is_rf_locked = %d\t\t", p->is_rf_locked);  in smsdvb_print_isdb_stats_ex()
178 	n += sysfs_emit_at(buf, n, "is_demod_locked = %d\t", p->is_demod_locked);  in smsdvb_print_isdb_stats_ex()
179 	n += sysfs_emit_at(buf, n, "is_external_lna_on = %d\n", p->is_external_lna_on);  in smsdvb_print_isdb_stats_ex()
180 	n += sysfs_emit_at(buf, n, "SNR = %d dB\t\t", p->SNR);  in smsdvb_print_isdb_stats_ex()
181 	n += sysfs_emit_at(buf, n, "RSSI = %d dBm\t\t", p->RSSI);  in smsdvb_print_isdb_stats_ex()
182 	n += sysfs_emit_at(buf, n, "in_band_pwr = %d dBm\n", p->in_band_pwr);  in smsdvb_print_isdb_stats_ex()
183 	n += sysfs_emit_at(buf, n, "carrier_offset = %d\t", p->carrier_offset);  in smsdvb_print_isdb_stats_ex()
184 	n += sysfs_emit_at(buf, n, "bandwidth = %d\t\t", p->bandwidth);  in smsdvb_print_isdb_stats_ex()
185 	n += sysfs_emit_at(buf, n, "frequency = %d Hz\n", p->frequency);  in smsdvb_print_isdb_stats_ex()
186 	n += sysfs_emit_at(buf, n, "transmission_mode = %d\t", p->transmission_mode);  in smsdvb_print_isdb_stats_ex()
187 	n += sysfs_emit_at(buf, n, "modem_state = %d\t\t", p->modem_state);  in smsdvb_print_isdb_stats_ex()
188 	n += sysfs_emit_at(buf, n, "guard_interval = %d\n", p->guard_interval);  in smsdvb_print_isdb_stats_ex()
189 	n += sysfs_emit_at(buf, n, "system_type = %d\t\t", p->system_type);  in smsdvb_print_isdb_stats_ex()
190 	n += sysfs_emit_at(buf, n, "partial_reception = %d\t", p->partial_reception);  in smsdvb_print_isdb_stats_ex()
191 	n += sysfs_emit_at(buf, n, "num_of_layers = %d\n", p->num_of_layers);  in smsdvb_print_isdb_stats_ex()
192 	n += sysfs_emit_at(buf, n, "segment_number = %d\t", p->segment_number);  in smsdvb_print_isdb_stats_ex()
193 	n += sysfs_emit_at(buf, n, "tune_bw = %d\n", p->tune_bw);  in smsdvb_print_isdb_stats_ex()
196 		if (p->layer_info[i].number_of_segments < 1 ||  in smsdvb_print_isdb_stats_ex()
197 		    p->layer_info[i].number_of_segments > 13)  in smsdvb_print_isdb_stats_ex()
200 		n += sysfs_emit_at(buf, n, "\nLayer %d\n", i);  in smsdvb_print_isdb_stats_ex()
201 		n += sysfs_emit_at(buf, n, "\tcode_rate = %d\t", p->layer_info[i].code_rate);  in smsdvb_print_isdb_stats_ex()
202 		n += sysfs_emit_at(buf, n, "constellation = %d\n", p->layer_info[i].constellation);  in smsdvb_print_isdb_stats_ex()
203 		n += sysfs_emit_at(buf, n, "\tber = %-5d\t", p->layer_info[i].ber);  in smsdvb_print_isdb_stats_ex()
204 		n += sysfs_emit_at(buf, n, "\tber_error_count = %-5d\t",  in smsdvb_print_isdb_stats_ex()
205 				   p->layer_info[i].ber_error_count);  in smsdvb_print_isdb_stats_ex()
206 		n += sysfs_emit_at(buf, n, "ber_bit_count = %-5d\n",  in smsdvb_print_isdb_stats_ex()
207 				   p->layer_info[i].ber_bit_count);  in smsdvb_print_isdb_stats_ex()
208 		n += sysfs_emit_at(buf, n, "\tpre_ber = %-5d\t", p->layer_info[i].pre_ber);  in smsdvb_print_isdb_stats_ex()
209 		n += sysfs_emit_at(buf, n, "\tts_per = %-5d\n", p->layer_info[i].ts_per);  in smsdvb_print_isdb_stats_ex()
210 		n += sysfs_emit_at(buf, n, "\terror_ts_packets = %-5d\t",  in smsdvb_print_isdb_stats_ex()
211 				   p->layer_info[i].error_ts_packets);  in smsdvb_print_isdb_stats_ex()
212 		n += sysfs_emit_at(buf, n, "total_ts_packets = %-5d\t",  in smsdvb_print_isdb_stats_ex()
213 				   p->layer_info[i].total_ts_packets);  in smsdvb_print_isdb_stats_ex()
214 		n += sysfs_emit_at(buf, n, "ti_ldepth_i = %d\n", p->layer_info[i].ti_ldepth_i);  in smsdvb_print_isdb_stats_ex()
215 		n += sysfs_emit_at(buf, n, "\tnumber_of_segments = %d\t",  in smsdvb_print_isdb_stats_ex()
216 				   p->layer_info[i].number_of_segments);  in smsdvb_print_isdb_stats_ex()
217 		n += sysfs_emit_at(buf, n, "tmcc_errors = %d\n", p->layer_info[i].tmcc_errors);  in smsdvb_print_isdb_stats_ex()
221 	debug_data->stats_count = n;  in smsdvb_print_isdb_stats_ex()
222 	spin_unlock(&debug_data->lock);  in smsdvb_print_isdb_stats_ex()
224 	wake_up(&debug_data->stats_queue);  in smsdvb_print_isdb_stats_ex()
229 	struct smsdvb_client_t *client = inode->i_private;  in smsdvb_stats_open()
230 	struct smsdvb_debugfs *debug_data = client->debug_data;  in smsdvb_stats_open()
232 	kref_get(&debug_data->refcount);  in smsdvb_stats_open()
234 	spin_lock(&debug_data->lock);  in smsdvb_stats_open()
235 	debug_data->stats_count = 0;  in smsdvb_stats_open()
236 	debug_data->stats_was_read = false;  in smsdvb_stats_open()
237 	spin_unlock(&debug_data->lock);  in smsdvb_stats_open()
239 	file->private_data = debug_data;  in smsdvb_stats_open()
256 	spin_lock(&debug_data->lock);  in smsdvb_stats_wait_read()
258 	if (debug_data->stats_was_read)  in smsdvb_stats_wait_read()
261 	rc = debug_data->stats_count;  in smsdvb_stats_wait_read()
264 	spin_unlock(&debug_data->lock);  in smsdvb_stats_wait_read()
270 	struct smsdvb_debugfs *debug_data = file->private_data;  in smsdvb_stats_poll()
273 	kref_get(&debug_data->refcount);  in smsdvb_stats_poll()
275 	poll_wait(file, &debug_data->stats_queue, wait);  in smsdvb_stats_poll()
278 	kref_put(&debug_data->refcount, smsdvb_debugfs_data_release);  in smsdvb_stats_poll()
287 	struct smsdvb_debugfs *debug_data = file->private_data;  in smsdvb_stats_read()
289 	kref_get(&debug_data->refcount);  in smsdvb_stats_read()
291 	if (file->f_flags & O_NONBLOCK) {  in smsdvb_stats_read()
294 			rc = -EWOULDBLOCK;  in smsdvb_stats_read()
298 		rc = wait_event_interruptible(debug_data->stats_queue,  in smsdvb_stats_read()
304 	if (debug_data->stats_was_read) {  in smsdvb_stats_read()
309 	len = debug_data->stats_count - *ppos;  in smsdvb_stats_read()
312 					     debug_data->stats_data, len);  in smsdvb_stats_read()
316 	if (*ppos >= debug_data->stats_count) {  in smsdvb_stats_read()
317 		spin_lock(&debug_data->lock);  in smsdvb_stats_read()
318 		debug_data->stats_was_read = true;  in smsdvb_stats_read()
319 		spin_unlock(&debug_data->lock);  in smsdvb_stats_read()
322 	kref_put(&debug_data->refcount, smsdvb_debugfs_data_release);  in smsdvb_stats_read()
328 	struct smsdvb_debugfs *debug_data = file->private_data;  in smsdvb_stats_release()
330 	spin_lock(&debug_data->lock);  in smsdvb_stats_release()
331 	debug_data->stats_was_read = true;	/* return EOF to read() */  in smsdvb_stats_release()
332 	spin_unlock(&debug_data->lock);  in smsdvb_stats_release()
333 	wake_up_interruptible_sync(&debug_data->stats_queue);  in smsdvb_stats_release()
335 	kref_put(&debug_data->refcount, smsdvb_debugfs_data_release);  in smsdvb_stats_release()
336 	file->private_data = NULL;  in smsdvb_stats_release()
355 	struct smscore_device_t *coredev = client->coredev;  in smsdvb_debugfs_create()
359 	if (!smsdvb_debugfs_usb_root || !coredev->is_usb_device)  in smsdvb_debugfs_create()
360 		return -ENODEV;  in smsdvb_debugfs_create()
362 	client->debugfs = debugfs_create_dir(coredev->devpath,  in smsdvb_debugfs_create()
364 	if (IS_ERR_OR_NULL(client->debugfs)) {  in smsdvb_debugfs_create()
365 		pr_info("Unable to create debugfs %s directory.\n",  in smsdvb_debugfs_create()
366 			coredev->devpath);  in smsdvb_debugfs_create()
367 		return -ENODEV;  in smsdvb_debugfs_create()
370 	d = debugfs_create_file("stats", S_IRUGO | S_IWUSR, client->debugfs,  in smsdvb_debugfs_create()
373 		debugfs_remove(client->debugfs);  in smsdvb_debugfs_create()
374 		return -ENOMEM;  in smsdvb_debugfs_create()
377 	debug_data = kzalloc(sizeof(*client->debug_data), GFP_KERNEL);  in smsdvb_debugfs_create()
379 		return -ENOMEM;  in smsdvb_debugfs_create()
381 	client->debug_data        = debug_data;  in smsdvb_debugfs_create()
382 	client->prt_dvb_stats     = smsdvb_print_dvb_stats;  in smsdvb_debugfs_create()
383 	client->prt_isdb_stats    = smsdvb_print_isdb_stats;  in smsdvb_debugfs_create()
384 	client->prt_isdb_stats_ex = smsdvb_print_isdb_stats_ex;  in smsdvb_debugfs_create()
386 	init_waitqueue_head(&debug_data->stats_queue);  in smsdvb_debugfs_create()
387 	spin_lock_init(&debug_data->lock);  in smsdvb_debugfs_create()
388 	kref_init(&debug_data->refcount);  in smsdvb_debugfs_create()
395 	if (!client->debugfs)  in smsdvb_debugfs_release()
398 	client->prt_dvb_stats     = NULL;  in smsdvb_debugfs_release()
399 	client->prt_isdb_stats    = NULL;  in smsdvb_debugfs_release()
400 	client->prt_isdb_stats_ex = NULL;  in smsdvb_debugfs_release()
402 	debugfs_remove_recursive(client->debugfs);  in smsdvb_debugfs_release()
403 	kref_put(&client->debug_data->refcount, smsdvb_debugfs_data_release);  in smsdvb_debugfs_release()
405 	client->debug_data = NULL;  in smsdvb_debugfs_release()
406 	client->debugfs = NULL;  in smsdvb_debugfs_release()
420 	 * node for sdio-based boards, but this may need some logic at sdio  in smsdvb_debugfs_register()
425 		pr_err("Couldn't create sysfs node for smsdvb\n");  in smsdvb_debugfs_register()