iommu/amd: Drop pasid_state reference in ppr_notifer error path
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>
diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c
index 574c71b..6ba707b 100644
--- a/drivers/iommu/amd_iommu_v2.c
+++ b/drivers/iommu/amd_iommu_v2.c
@@ -607,6 +607,10 @@
ret = NOTIFY_OK;
out_drop_state:
+
+ if (ret != NOTIFY_OK && pasid_state)
+ put_pasid_state(pasid_state);
+
put_device_state(dev_state);
out: