From: Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
To: Suman Anna <s-anna-l0cyMroinI0@public.gmane.org>,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
Cc: Joerg Roedel <jroedel-l3A5Bk7waGM@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH 3/5] iommu/omap: Set dev->archdata.iommu = NULL in omap_iommu_remove_device
Date: Fri, 31 Mar 2017 14:10:46 +0200 [thread overview]
Message-ID: <1490962248-12602-4-git-send-email-joro@8bytes.org> (raw)
In-Reply-To: <1490962248-12602-1-git-send-email-joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
From: Joerg Roedel <jroedel-l3A5Bk7waGM@public.gmane.org>
Don't leave a stale pointer in case the device continues to
exist for some more time.
Signed-off-by: Joerg Roedel <jroedel-l3A5Bk7waGM@public.gmane.org>
---
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
next prev parent reply other threads:[~2017-03-31 12:10 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-31 12:10 [PATCH 0/5] iommu/omap: Add support for iommu-groups and 'struct iommu_device' Joerg Roedel
[not found] ` <1490962248-12602-1-git-send-email-joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2017-03-31 12:10 ` [PATCH 1/5] iommu/omap: Move data structures to omap-iommu.h Joerg Roedel
[not found] ` <1490962248-12602-2-git-send-email-joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2017-04-03 17:22 ` Suman Anna
2017-03-31 12:10 ` [PATCH 2/5] iommu/omap: Permanently keep iommu_dev pointer in arch_data Joerg Roedel
[not found] ` <1490962248-12602-3-git-send-email-joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2017-04-03 20:35 ` Suman Anna
[not found] ` <c3305742-b927-c789-c7c2-883f98a77ada-l0cyMroinI0@public.gmane.org>
2017-04-07 14:35 ` Joerg Roedel
2017-03-31 12:10 ` Joerg Roedel [this message]
[not found] ` <1490962248-12602-4-git-send-email-joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2017-04-03 18:25 ` [PATCH 3/5] iommu/omap: Set dev->archdata.iommu = NULL in omap_iommu_remove_device Suman Anna
2017-03-31 12:10 ` [PATCH 4/5] iommu/omap: Make use of 'struct iommu_device' Joerg Roedel
2017-03-31 12:10 ` [PATCH 5/5] iommu/omap: Add iommu-group support Joerg Roedel
2017-04-03 17:09 ` [PATCH 0/5] iommu/omap: Add support for iommu-groups and 'struct iommu_device' Suman Anna
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