From 197887f03daecdb3ae21bafeb4155412abad3497 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Tue, 9 Apr 2013 21:14:08 +0200 Subject: [PATCH] iommu/amd: Properly initialize irq-table lock Fixes a lockdep warning. Cc: stable@vger.kernel.org # >= v3.7 Reviewed-by: Shuah Khan Signed-off-by: Joerg Roedel --- 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 b05599d..f42793d 100644 --- a/drivers/iommu/amd_iommu.c +++ b/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; -- 2.7.4