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iommu/amd: Drop pasid_state reference in ppr_notifer error path

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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>
This commit is contained in:
Joerg Roedel 2014-07-08 14:55:10 +02:00
parent 61feb43897
commit dc88db7ee9
1 changed files with 4 additions and 0 deletions
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4
drivers/iommu/amd_iommu_v2.c
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@ -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: