[PATCH 3/9] iommu/amd: Properly initialize irq-table lock

[Joerg Roedel]

Fixes a lockdep warning.

Cc: stable@xxxxxxxxxxxxxxx # >= v3.7
Signed-off-by: Joerg Roedel <joro@xxxxxxxxxx>
---
 drivers/iommu/amd_iommu.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 72fa570..33900b5 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -3927,6 +3927,9 @@ static struct irq_remap_table *get_irq_table(u16 devid, bool ioapic)
 	if (!table)
 		goto out;
 
+	/* Initialize table spin-lock */
+	spin_lock_init(&table->lock);
+
 	if (ioapic)
 		/* Keep the first 32 indexes free for IOAPIC interrupts */
 		table->min_index = 32;
-- 
1.7.9.5


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