UVC_BUF_STATE_ERROR
buf->state == UVC_BUF_STATE_ERROR)
buf->state = UVC_BUF_STATE_ERROR;
uvc_queue_return_buffers(queue, UVC_BUF_STATE_ERROR);
uvc_queue_return_buffers(queue, UVC_BUF_STATE_ERROR);
__uvc_queue_return_buffers(queue, UVC_BUF_STATE_ERROR);
buf->state = buf->error ? UVC_BUF_STATE_ERROR : UVC_BUF_STATE_DONE;
enum vb2_buffer_state vb2_state = state == UVC_BUF_STATE_ERROR
buf->state = UVC_BUF_STATE_ERROR;
buf->state = UVC_BUF_STATE_ERROR;
buf->state = UVC_BUF_STATE_ERROR;