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iommu/amd: Drop pasid_state reference in ppr_notifer error path
author
Joerg Roedel
<jroedel@suse.de>
Tue, 8 Jul 2014 12:55:10 +0000
(14:55 +0200)
committer
Joerg Roedel
<jroedel@suse.de>
Thu, 10 Jul 2014 13:36:40 +0000
(15:36 +0200)
In case we are not able to allocate a fault structure a
reference to the pasid_state will be leaked. Fix that by
dropping the reference in the error path in case we hold
one.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Tested-by: Oded Gabbay <Oded.Gabbay@amd.com>
drivers/iommu/amd_iommu_v2.c
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diff --git
a/drivers/iommu/amd_iommu_v2.c
b/drivers/iommu/amd_iommu_v2.c
index
574c71b
..
6ba707b
100644
(file)
--- a/
drivers/iommu/amd_iommu_v2.c
+++ b/
drivers/iommu/amd_iommu_v2.c
@@
-607,6
+607,10
@@
static int ppr_notifier(struct notifier_block *nb, unsigned long e, void *data)
ret = NOTIFY_OK;
out_drop_state:
+
+ if (ret != NOTIFY_OK && pasid_state)
+ put_pasid_state(pasid_state);
+
put_device_state(dev_state);
out: