drivers/gpio/gpiolib-cdev.c

156 static long linehandle_set_config(struct linehandle_state *lh,
172 	for (i = 0; i < lh->num_descs; i++) {
173 		desc = lh->descs[i];
200 	struct linehandle_state *lh = file->private_data;
207 	guard(srcu)(&lh->gdev->srcu);
209 	if (!rcu_access_pointer(lh->gdev->chip))
216 						    lh->num_descs, lh->descs,
222 		for (i = 0; i < lh->num_descs; i++)
234 		if (!test_bit(FLAG_IS_OUT, &lh->descs[0]->flags))
241 		for (i = 0; i < lh->num_descs; i++)
247 						     lh->num_descs,
248 						     lh->descs,
252 		return linehandle_set_config(lh, ip);
266 static void linehandle_free(struct linehandle_state *lh)
270 	for (i = 0; i < lh->num_descs; i++)
271 		if (lh->descs[i])
272 			gpiod_free(lh->descs[i]);
273 	kfree(lh->label);
274 	gpio_device_put(lh->gdev);
275 	kfree(lh);
297 	struct linehandle_state *lh;
313 	lh = kzalloc(sizeof(*lh), GFP_KERNEL);
314 	if (!lh)
316 	lh->gdev = gpio_device_get(gdev);
320 		lh->label = kstrndup(handlereq.consumer_label,
323 		if (!lh->label) {
329 	lh->num_descs = handlereq.lines;
341 		ret = gpiod_request_user(desc, lh->label);
344 		lh->descs[i] = desc;
381 				  lh,
402 		lh->num_descs);
409 	linehandle_free(lh);