From: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Date: Mon, 27 Aug 2018 09:37:24 +0000 (+0200)
Subject: VT-d/dmar: iommu mem leak fix
X-Git-Tag: archive/raspbian/4.14.0+80-gd101b417b7-1+rpi1^2~63^2~3396
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=fd07b6648c4c8891dca5bd0f7ef174b6831f80b2;p=xen.git

VT-d/dmar: iommu mem leak fix

Release memory allocated for drhd iommu in error path.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Acked-by: Kevin Tian <kevin.tian@intel.com>
---

diff --git a/xen/drivers/passthrough/vtd/dmar.c b/xen/drivers/passthrough/vtd/dmar.c
index 46decd4eb1..81afa5498e 100644
--- a/xen/drivers/passthrough/vtd/dmar.c
+++ b/xen/drivers/passthrough/vtd/dmar.c
@@ -100,6 +100,7 @@ static void __init disable_all_dmar_units(void)
     {
         list_del(&drhd->list);
         scope_devices_free(&drhd->scope);
+        iommu_free(drhd);
         xfree(drhd);
     }
     list_for_each_entry_safe ( rmrr, _rmrr, &acpi_rmrr_units, list )