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Groups > linux.kernel > #1613950

[PATCH 3/5] iommu/omap: Set dev->archdata.iommu = NULL in omap_iommu_remove_device

From Joerg Roedel <joro@8bytes.org>
Newsgroups linux.kernel
Subject [PATCH 3/5] iommu/omap: Set dev->archdata.iommu = NULL in omap_iommu_remove_device
Date 2017-03-31 14:20 +0200
Message-ID <tr3H4-4uB-17@gated-at.bofh.it> (permalink)
References <tr3H3-4uB-3@gated-at.bofh.it>
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From: Joerg Roedel <jroedel@suse.de>

Don't leave a stale pointer in case the device continues to
exist for some more time.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
 drivers/iommu/omap-iommu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index 45df5c8..04b3718 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -1252,6 +1252,7 @@ static void omap_iommu_remove_device(struct device *dev)
 	if (!dev->of_node || !arch_data)
 		return;
 
+	dev->archdata.iommu = NULL;
 	kfree(arch_data);
 }
 
-- 
1.9.1

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Thread

[PATCH 0/5] iommu/omap: Add support for iommu-groups and 'struct iommu_device' Joerg Roedel <joro@8bytes.org> - 2017-03-31 14:20 +0200
  [PATCH 5/5] iommu/omap: Add iommu-group support Joerg Roedel <joro@8bytes.org> - 2017-03-31 14:20 +0200
  [PATCH 1/5] iommu/omap: Move data structures to omap-iommu.h Joerg Roedel <joro@8bytes.org> - 2017-03-31 14:20 +0200
    Re: [PATCH 1/5] iommu/omap: Move data structures to omap-iommu.h Suman Anna <s-anna@ti.com> - 2017-04-03 19:30 +0200
  [PATCH 3/5] iommu/omap: Set dev->archdata.iommu = NULL in omap_iommu_remove_device Joerg Roedel <joro@8bytes.org> - 2017-03-31 14:20 +0200
    Re: [PATCH 3/5] iommu/omap: Set dev->archdata.iommu = NULL in  omap_iommu_remove_device Suman Anna <s-anna@ti.com> - 2017-04-03 20:30 +0200
  [PATCH 4/5] iommu/omap: Make use of 'struct iommu_device' Joerg Roedel <joro@8bytes.org> - 2017-03-31 14:20 +0200
  Re: [PATCH 0/5] iommu/omap: Add support for iommu-groups and 'struct  iommu_device' Suman Anna <s-anna@ti.com> - 2017-04-03 19:20 +0200

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