102 	struct uvc_request *ureq = req->context;  in uvc_video_encode_isoc_sg()  local
109 	sg = ureq->sgt.sgl;  in uvc_video_encode_isoc_sg()
110 	sg_init_table(sg, ureq->sgt.nents);  in uvc_video_encode_isoc_sg()
113 	ret = uvc_video_encode_header(video, buf, ureq->header,  in uvc_video_encode_isoc_sg()
115 	sg_set_buf(sg, ureq->header, UVCG_REQUEST_HEADER_LEN);  in uvc_video_encode_isoc_sg()
127 	for_each_sg(sg, iter, ureq->sgt.nents - 1, i) {  in uvc_video_encode_isoc_sg()
147 	req->sg	= ureq->sgt.sgl;  in uvc_video_encode_isoc_sg()
213 	struct uvc_request *ureq = req->context;  in uvc_video_complete()  local
214 	struct uvc_video *video = ureq->video;  in uvc_video_complete()
246 	if (video->ureq) {  in uvc_video_free_requests()
248 			sg_free_table(&video->ureq[i].sgt);  in uvc_video_free_requests()
250 			if (video->ureq[i].req) {  in uvc_video_free_requests()
251 				usb_ep_free_request(video->ep, video->ureq[i].req);  in uvc_video_free_requests()
252 				video->ureq[i].req = NULL;  in uvc_video_free_requests()
255 			if (video->ureq[i].req_buffer) {  in uvc_video_free_requests()
256 				kfree(video->ureq[i].req_buffer);  in uvc_video_free_requests()
257 				video->ureq[i].req_buffer = NULL;  in uvc_video_free_requests()
261 		kfree(video->ureq);  in uvc_video_free_requests()
262 		video->ureq = NULL;  in uvc_video_free_requests()
283 	video->ureq = kcalloc(video->uvc_num_requests, sizeof(struct uvc_request), GFP_KERNEL);  in uvc_video_alloc_requests()
284 	if (video->ureq == NULL)  in uvc_video_alloc_requests()
288 		video->ureq[i].req_buffer = kmalloc(req_size, GFP_KERNEL);  in uvc_video_alloc_requests()
289 		if (video->ureq[i].req_buffer == NULL)  in uvc_video_alloc_requests()
292 		video->ureq[i].req = usb_ep_alloc_request(video->ep, GFP_KERNEL);  in uvc_video_alloc_requests()
293 		if (video->ureq[i].req == NULL)  in uvc_video_alloc_requests()
296 		video->ureq[i].req->buf = video->ureq[i].req_buffer;  in uvc_video_alloc_requests()
297 		video->ureq[i].req->length = 0;  in uvc_video_alloc_requests()
298 		video->ureq[i].req->complete = uvc_video_complete;  in uvc_video_alloc_requests()
299 		video->ureq[i].req->context = &video->ureq[i];  in uvc_video_alloc_requests()
300 		video->ureq[i].video = video;  in uvc_video_alloc_requests()
302 		list_add_tail(&video->ureq[i].req->list, &video->req_free);  in uvc_video_alloc_requests()
304 		sg_alloc_table(&video->ureq[i].sgt,  in uvc_video_alloc_requests()
412 			if (video->ureq && video->ureq[i].req)  in uvcg_video_enable()
413 				usb_ep_dequeue(video->ep, video->ureq[i].req);  in uvcg_video_enable()