iommu/amd: Fix bug in put_pasid_state_wait

[linux-2.6-block.git] / drivers / iommu / amd_iommu_v2.c

diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c
index a1cbba9056fdba15b1334bd923714c65957fc20c..3465faf1809e4cb1d6630e5cdc8f87cd4e405bd2 100644 (file)
--- a/drivers/iommu/amd_iommu_v2.c
+++ b/drivers/iommu/amd_iommu_v2.c
@@ -266,6 +266,7 @@ static void put_pasid_state(struct pasid_state *pasid_state)
 
 static void put_pasid_state_wait(struct pasid_state *pasid_state)
 {
+       atomic_dec(&pasid_state->count);
        wait_event(pasid_state->wq, !atomic_read(&pasid_state->count));
        free_pasid_state(pasid_state);
 }