linux-kernel - [Patch Part1 V2 16/20] iommu/vt-d: release invalidation queue when destroying IOMMU unit

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1386300083-6882-17-git-send-email-jiang.liu@linux.intel.com>
Date:	Fri,  6 Dec 2013 11:21:19 +0800
From:	Jiang Liu <jiang.liu@...ux.intel.com>
To:	Joerg Roedel <joro@...tes.org>,
	David Woodhouse <dwmw2@...radead.org>,
	Dan Williams <dan.j.williams@...el.com>,
	Vinod Koul <vinod.koul@...el.com>,
	Ashok Raj <ashok.raj@...el.com>,
	Yijing Wang <wangyijing@...wei.com>,
	iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Cc:	Jiang Liu <jiang.liu@...ux.intel.com>,
	Tony Luck <tony.luck@...el.com>,
	Yinghai Lu <yinghai@...nel.org>, linux-pci@...r.kernel.org,
	dmaengine@...r.kernel.org
Subject: [Patch Part1 V2 16/20] iommu/vt-d: release invalidation queue when destroying IOMMU unit

Release associated invalidation queue when destroying IOMMU unit
to avoid memory leak.

Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
---
 drivers/iommu/dmar.c |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 812b596..a9d9d0f 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -745,6 +745,12 @@ static void free_iommu(struct intel_iommu *iommu)
 		destroy_irq(iommu->irq);
 	}
 
+	if (iommu->qi) {
+		free_page((unsigned long)iommu->qi->desc);
+		kfree(iommu->qi->desc_status);
+		kfree(iommu->qi);
+	}
+
 	if (iommu->reg)
 		unmap_iommu(iommu);
 
-- 
1.7.10.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/