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iommu/amd: Add missing spin_lock initialization

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>
Joerg Roedel 13 年之前
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共有 1 个文件被更改,包括 2 次插入0 次删除
  1. 2 0
      drivers/iommu/amd_iommu_v2.c

+ 2 - 0
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;