diff --git a/[refs] b/[refs]
index e1c356348840..c0f5b558c306 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 0dfedd619442f3a64de4fcd8a735664d18e86ee7
+refs/heads/master: 197887f03daecdb3ae21bafeb4155412abad3497
diff --git a/trunk/drivers/iommu/amd_iommu.c b/trunk/drivers/iommu/amd_iommu.c
index b05599dd2c43..f42793d1574d 100644
--- a/trunk/drivers/iommu/amd_iommu.c
+++ b/trunk/drivers/iommu/amd_iommu.c
@@ -3930,6 +3930,9 @@ 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;