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iommu/amd: Properly initialize irq-table lock
author
Joerg Roedel
<joro@8bytes.org>
Tue, 9 Apr 2013 19:14:08 +0000
(21:14 +0200)
committer
Joerg Roedel
<joro@8bytes.org>
Thu, 18 Apr 2013 15:21:28 +0000
(17:21 +0200)
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>
drivers/iommu/amd_iommu.c
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diff --git
a/drivers/iommu/amd_iommu.c
b/drivers/iommu/amd_iommu.c
index
b05599d
..
f42793d
100644
(file)
--- 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;