commit: 2c13d47a1a7ee8808796016c617aef25fd1d1925
From: Joerg Roedel <[email protected]>
Date: Thu, 19 Jul 2012 10:56:10 +0200
Subject: iommu/amd: Add missing spin_lock initialization

Add missing spin_lock initialization in
amd_iommu_bind_pasid() function and make lockdep happy
again.

Cc: [email protected] # >= v3.3
Signed-off-by: Joerg Roedel <[email protected]>
---
 drivers/iommu/amd_iommu_v2.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c
index 036fe9b..a1f1bc8 100644
--- a/drivers/iommu/amd_iommu_v2.c
+++ b/drivers/iommu/amd_iommu_v2.c
@@ -681,6 +681,8 @@ int amd_iommu_bind_pasid(struct pci_dev *pdev, int pasid,
 
        atomic_set(&pasid_state->count, 1);
        init_waitqueue_head(&pasid_state->wq);
+       spin_lock_init(&pasid_state->lock);
+
        pasid_state->task         = task;
        pasid_state->mm           = get_task_mm(task);
        pasid_state->device_state = dev_state;
-- 
1.7.3.4
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