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Commit ec6d67e3 authored by Alan Stern's avatar Alan Stern Committed by Greg Kroah-Hartman
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USB: EHCI: report actual_length for iso transfers 



This patch (as1259b) makes ehci-hcd return the total number of bytes
transferred in urb->actual_length for Isochronous transfers.
Until now, the actual_length value was unaccountably left at 0.

Signed-off-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Acked-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
Cc: stable <stable@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent f092c240

drivers/usb/host/ehci-sched.c

+8 −4
Original line number Diff line number Diff line
@@ -1619,11 +1619,14 @@ itd_complete ( 
				desc->status = -EPROTO;



			/* HC need not update length with this error */

			if (!(t & EHCI_ISOC_BABBLE))

			if (!(t & EHCI_ISOC_BABBLE)) {

				desc->actual_length = EHCI_ITD_LENGTH(t);

				urb->actual_length += desc->actual_length;

			}

		} else if (likely ((t & EHCI_ISOC_ACTIVE) == 0)) {

			desc->status = 0;

			desc->actual_length = EHCI_ITD_LENGTH(t);

			urb->actual_length += desc->actual_length;

		} else {

			/* URB was too late */

			desc->status = -EXDEV;
@@ -2015,6 +2018,7 @@ sitd_complete ( 
	} else {

		desc->status = 0;

		desc->actual_length = desc->length - SITD_LENGTH(t);

		urb->actual_length += desc->actual_length;

	}

	stream->depth -= stream->interval << 3;