197 		if (dev->isobufs[i].urb) {  in stk_start_stream()
198 			ret = usb_submit_urb(dev->isobufs[i].urb, GFP_KERNEL);  in stk_start_stream()
215 		if (dev->isobufs != NULL) {  in stk_stop_stream()
217 				if (dev->isobufs[i].urb)  in stk_stop_stream()
218 					usb_kill_urb(dev->isobufs[i].urb);  in stk_stop_stream()
433 	if (dev->isobufs)  in stk_prepare_iso()
436 		dev->isobufs = kcalloc(MAX_ISO_BUFS, sizeof(*dev->isobufs),  in stk_prepare_iso()
438 	if (dev->isobufs == NULL) {  in stk_prepare_iso()
443 		if (dev->isobufs[i].data == NULL) {  in stk_prepare_iso()
450 			dev->isobufs[i].data = kbuf;  in stk_prepare_iso()
453 		if (dev->isobufs[i].urb == NULL) {  in stk_prepare_iso()
459 			dev->isobufs[i].urb = urb;  in stk_prepare_iso()
462 			usb_kill_urb(dev->isobufs[i].urb);  in stk_prepare_iso()
463 			urb = dev->isobufs[i].urb;  in stk_prepare_iso()
469 		urb->transfer_buffer = dev->isobufs[i].data;  in stk_prepare_iso()
485 	for (i = 0; i < MAX_ISO_BUFS && dev->isobufs[i].data; i++)  in stk_prepare_iso()
486 		kfree(dev->isobufs[i].data);  in stk_prepare_iso()
487 	for (i = 0; i < MAX_ISO_BUFS && dev->isobufs[i].urb; i++)  in stk_prepare_iso()
488 		usb_free_urb(dev->isobufs[i].urb);  in stk_prepare_iso()
489 	kfree(dev->isobufs);  in stk_prepare_iso()
490 	dev->isobufs = NULL;  in stk_prepare_iso()
498 	if (dev == NULL || dev->isobufs == NULL)  in stk_clean_iso()
504 		urb = dev->isobufs[i].urb;  in stk_clean_iso()
510 		kfree(dev->isobufs[i].data);  in stk_clean_iso()
512 	kfree(dev->isobufs);  in stk_clean_iso()
513 	dev->isobufs = NULL;  in stk_clean_iso()
1243 	if (dev->sio_bufs != NULL || dev->isobufs != NULL)  in stk_v4l_dev_release()