diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 3d6b30d..ff1de5e 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -2159,7 +2159,7 @@
 	wa->buf_in_urb->transfer_dma = xfer->urb->transfer_dma +
 		xfer->urb->iso_frame_desc[curr_iso_frame].offset;
 	wa->buf_in_urb->transfer_buffer_length =
-		xfer->urb->iso_frame_desc[curr_iso_frame].length;
+		xfer->urb->iso_frame_desc[curr_iso_frame].actual_length;
 	wa->buf_in_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 	wa->buf_in_urb->transfer_buffer = NULL;
 	wa->buf_in_urb->sg = NULL;