From: Ruiyu Ni Date: Mon, 15 Jan 2018 08:10:15 +0000 (+0800) Subject: MdeModulePkg/EhciDxe: call EhcFreeUrb when int-transfer completes X-Git-Tag: edk2-stable201903~2606 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=c74805f1e7176ecf36d92280ae4c7efe71185f08;p=mirror_edk2.git MdeModulePkg/EhciDxe: call EhcFreeUrb when int-transfer completes It didn't cause big issues when VT-d was disabled. But in VT-d enabled platform, lack of EhcFreeUrb call caused the DMA data was not moved back to user's buffer. It caused the correct data cannot be got through sync interrupt transfer. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ruiyu Ni Reviewed-by: Star Zeng --- diff --git a/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c b/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c index 5173a9d599..f18ee82261 100644 --- a/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c +++ b/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c @@ -11,7 +11,7 @@ and companion host controller when UHCI or OHCI gets attached earlier than EHCI and a USB 2.0 device inserts. -Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.
This program and the accompanying materials are licensed and made available under the terms and conditions of the BSD License which accompanies this distribution. The full text of the license may be found at @@ -1220,6 +1220,7 @@ EhcSyncInterruptTransfer ( Status = EFI_SUCCESS; } + EhcFreeUrb (Ehc, Urb); ON_EXIT: Ehc->PciIo->Flush (Ehc->PciIo); gBS->RestoreTPL (OldTpl);