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authorJoerg Roedel <joro@8bytes.org>2013-04-09 23:14:08 +0400
committerJoerg Roedel <joro@8bytes.org>2013-04-18 19:21:28 +0400
commit197887f03daecdb3ae21bafeb4155412abad3497 (patch)
tree951fa773dffe67f60ca3051003144966031c1bbd /drivers/iommu
parent0dfedd619442f3a64de4fcd8a735664d18e86ee7 (diff)
downloadlinux-197887f03daecdb3ae21bafeb4155412abad3497.tar.xz
iommu/amd: Properly initialize irq-table lock
Fixes a lockdep warning. Cc: stable@vger.kernel.org # >= v3.7 Reviewed-by: Shuah Khan <shuahkhan@gmail.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/amd_iommu.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index b05599dd2c43..f42793d1574d 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;