gadget/function/f_hid.c

423 	if (req->status != 0) {
425 			"End Point Request ERROR: %d\n", req->status);
440 	ssize_t status = -ENOMEM;
472 		status = -ESHUTDOWN;
476 	status = copy_from_user(req->buf, buffer, count);
477 	if (status != 0) {
480 		status = -EINVAL;
496 	req->status   = 0;
506 		status = -ESHUTDOWN;
510 	status = usb_ep_queue(hidg->in_ep, req, GFP_ATOMIC);
511 	if (status < 0)
514 		status = count;
516 	return status;
524 	return status;
585 	switch (req->status) {
602 		ERROR(cdev, "Set report failed %d\n", req->status);
620 	if (req->status != 0 || req->buf == NULL || req->actual == 0) {
622 		      "%s FAILED: status=%d, buf=%p, actual=%d\n",
623 		      __func__, req->status, req->buf, req->actual);
650 	int status = 0;
770 	status = usb_ep_queue(cdev->gadget->ep0, req, GFP_ATOMIC);
771 	if (status < 0)
773 	return status;
812 	int i, status = 0;
820 		status = config_ep_by_speed(f->config->cdev->gadget, f,
822 		if (status) {
826 		status = usb_ep_enable(hidg->in_ep);
827 		if (status < 0) {
835 			status = -ENOMEM;
844 		status = config_ep_by_speed(f->config->cdev->gadget, f,
846 		if (status) {
850 		status = usb_ep_enable(hidg->out_ep);
851 		if (status < 0) {
860 		for (i = 0; i < hidg->qlen && status == 0; i++) {
867 				status = usb_ep_queue(hidg->out_ep, req,
869 				if (status) {
871 						hidg->out_ep->name, status);
875 				status = -ENOMEM;
902 	return status;
920 	int			status;
930 	status = usb_interface_id(c, f);
931 	if (status < 0)
933 	hidg_interface_desc.bInterfaceNumber = status;
936 	status = -ENODEV;
988 		status = usb_assign_descriptors(f,
994 		status = usb_assign_descriptors(f,
1000 	if (status)
1013 	status = cdev_device_add(&hidg->cdev, &hidg->dev);
1014 	if (status)
1025 	return status;
1206 	int status = 0;
1218 		status = ghid_setup(NULL, HIDG_MINORS);
1219 		if (status)  {
1220 			ret = ERR_PTR(status);
1330 	int status;
1333 	status = class_register(&hidg_class);
1334 	if (status)
1335 		return status;
1337 	status = alloc_chrdev_region(&dev, 0, count, "hidg");
1338 	if (status) {
1340 		return status;