gadget/function/f_uac1_legacy.c

252 	struct f_audio_buf *copy_buf;
254 	copy_buf = kzalloc(sizeof *copy_buf, GFP_ATOMIC);
255 	if (!copy_buf)
258 	copy_buf->buf = kzalloc(buf_size, GFP_ATOMIC);
259 	if (!copy_buf->buf) {
260 		kfree(copy_buf);
264 	return copy_buf;
284 	struct f_audio_buf *copy_buf;
325 	struct f_audio_buf *copy_buf = audio->copy_buf;
334 	if (!copy_buf)
338 	if (audio_buf_size - copy_buf->actual < req->actual) {
340 		list_add_tail(&copy_buf->list, &audio->play_queue);
343 		copy_buf = f_audio_buffer_alloc(audio_buf_size);
344 		if (IS_ERR(copy_buf))
348 	memcpy(copy_buf->buf + copy_buf->actual, req->buf, req->actual);
349 	copy_buf->actual += req->actual;
350 	audio->copy_buf = copy_buf;
611 			audio->copy_buf = f_audio_buffer_alloc(audio_buf_size);
612 			if (IS_ERR(audio->copy_buf))
642 			struct f_audio_buf *copy_buf = audio->copy_buf;
643 			if (copy_buf) {
644 				list_add_tail(&copy_buf->list,