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iommu/amd: Add missing spin_lock initialization

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

Cc: stable@vger.kernel.org # >= v3.3
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Joerg Roedel 2012-07-19 10:56:10 +02:00
parent 3775d4818d
commit 2c13d47a1a
1 changed files with 2 additions and 0 deletions
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2
drivers/iommu/amd_iommu_v2.c
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@ -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;