From: Pan Bian <bianpan2016@163.com>
Date: Wed, 21 Nov 2018 09:53:47 +0000 (+0800)
Subject: iommu/vt-d: Use memunmap to free memremap
X-Git-Tag: v4.4.167~23
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=91da119bce6a0799ccbda8d1e40ed8f6081361cc;p=thirdparty%2Fkernel%2Fstable.git

iommu/vt-d: Use memunmap to free memremap

[ Upstream commit 829383e183728dec7ed9150b949cd6de64127809 ]

memunmap() should be used to free the return of memremap(), not
iounmap().

Fixes: dfddb969edf0 ('iommu/vt-d: Switch from ioremap_cache to memremap')
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 49b266433f4c3..7feaa82f8c7c6 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -2977,7 +2977,7 @@ static int copy_context_table(struct intel_iommu *iommu,
 			}
 
 			if (old_ce)
-				iounmap(old_ce);
+				memunmap(old_ce);
 
 			ret = 0;
 			if (devfn < 0x80)