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Subject[ 042/109] iommu/amd: Add missing spin_lock initialization
Date
From: Greg KH <gregkh@linuxfoundation.org>

3.4-stable review patch. If anyone has any objections, please let me know.

------------------
From: Joerg Roedel <joerg.roedel@amd.com>

commit 2c13d47a1a7ee8808796016c617aef25fd1d1925 upstream.

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

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/iommu/amd_iommu_v2.c | 2 ++
1 file changed, 2 insertions(+)
--- 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

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;



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