38 	struct virtual_nci_dev *vdev = nci_get_drvdata(ndev);  in virtual_nci_close()  local
40 	mutex_lock(&vdev->mtx);  in virtual_nci_close()
41 	kfree_skb(vdev->send_buff);  in virtual_nci_close()
42 	vdev->send_buff = NULL;  in virtual_nci_close()
43 	mutex_unlock(&vdev->mtx);  in virtual_nci_close()
50 	struct virtual_nci_dev *vdev = nci_get_drvdata(ndev);  in virtual_nci_send()  local
52 	mutex_lock(&vdev->mtx);  in virtual_nci_send()
53 	if (vdev->send_buff) {  in virtual_nci_send()
54 		mutex_unlock(&vdev->mtx);  in virtual_nci_send()
58 	vdev->send_buff = skb_copy(skb, GFP_KERNEL);  in virtual_nci_send()
59 	if (!vdev->send_buff) {  in virtual_nci_send()
60 		mutex_unlock(&vdev->mtx);  in virtual_nci_send()
64 	mutex_unlock(&vdev->mtx);  in virtual_nci_send()
65 	wake_up_interruptible(&vdev->wq);  in virtual_nci_send()
80 	struct virtual_nci_dev *vdev = file->private_data;  in virtual_ncidev_read()  local
83 	mutex_lock(&vdev->mtx);  in virtual_ncidev_read()
84 	while (!vdev->send_buff) {  in virtual_ncidev_read()
85 		mutex_unlock(&vdev->mtx);  in virtual_ncidev_read()
86 		if (wait_event_interruptible(vdev->wq, vdev->send_buff))  in virtual_ncidev_read()
88 		mutex_lock(&vdev->mtx);  in virtual_ncidev_read()
91 	actual_len = min_t(size_t, count, vdev->send_buff->len);  in virtual_ncidev_read()
93 	if (copy_to_user(buf, vdev->send_buff->data, actual_len)) {  in virtual_ncidev_read()
94 		mutex_unlock(&vdev->mtx);  in virtual_ncidev_read()
98 	skb_pull(vdev->send_buff, actual_len);  in virtual_ncidev_read()
99 	if (vdev->send_buff->len == 0) {  in virtual_ncidev_read()
100 		consume_skb(vdev->send_buff);  in virtual_ncidev_read()
101 		vdev->send_buff = NULL;  in virtual_ncidev_read()
103 	mutex_unlock(&vdev->mtx);  in virtual_ncidev_read()
112 	struct virtual_nci_dev *vdev = file->private_data;  in virtual_ncidev_write()  local
124 	nci_recv_frame(vdev->ndev, skb);  in virtual_ncidev_write()
131 	struct virtual_nci_dev *vdev;  in virtual_ncidev_open()  local
133 	vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);  in virtual_ncidev_open()
134 	if (!vdev)  in virtual_ncidev_open()
136 	vdev->ndev = nci_allocate_device(&virtual_nci_ops,  in virtual_ncidev_open()
138 	if (!vdev->ndev) {  in virtual_ncidev_open()
139 		kfree(vdev);  in virtual_ncidev_open()
143 	mutex_init(&vdev->mtx);  in virtual_ncidev_open()
144 	init_waitqueue_head(&vdev->wq);  in virtual_ncidev_open()
145 	file->private_data = vdev;  in virtual_ncidev_open()
146 	nci_set_drvdata(vdev->ndev, vdev);  in virtual_ncidev_open()
148 	ret = nci_register_device(vdev->ndev);  in virtual_ncidev_open()
150 		nci_free_device(vdev->ndev);  in virtual_ncidev_open()
151 		mutex_destroy(&vdev->mtx);  in virtual_ncidev_open()
152 		kfree(vdev);  in virtual_ncidev_open()
161 	struct virtual_nci_dev *vdev = file->private_data;  in virtual_ncidev_close()  local
163 	nci_unregister_device(vdev->ndev);  in virtual_ncidev_close()
164 	nci_free_device(vdev->ndev);  in virtual_ncidev_close()
165 	mutex_destroy(&vdev->mtx);  in virtual_ncidev_close()
166 	kfree(vdev);  in virtual_ncidev_close()
174 	struct virtual_nci_dev *vdev = file->private_data;  in virtual_ncidev_ioctl()  local
175 	const struct nfc_dev *nfc_dev = vdev->ndev->nfc_dev;  in virtual_ncidev_ioctl()