From ecf3701cede840476b012ac4796f77c6dd9ee623 Mon Sep 17 00:00:00 2001 From: Thomas Pugliese Date: Fri, 28 Feb 2014 15:10:26 -0600 Subject: usb: wusbcore: read actual_length bytes isoc in segments Use the iso_frame_desc.actual_length field instead of length when reading isoc in data segments from the HWA. This fixes a case where the isoc in read URB would never complete because it expected the HWA to send more data than it actually did. When this happened the URB would be stuck in the driver preventing module unload and clean shutdown. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman --- drivers/usb/wusbcore/wa-xfer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/usb/wusbcore') 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 @@ static void __wa_populate_buf_in_urb_isoc(struct wahc *wa, struct wa_xfer *xfer, 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; -- cgit v1.1