| To: | "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH][vtd] Fix a missing spin_unlock_irqrestore() |
| From: | "Cui, Dexuan" <dexuan.cui@xxxxxxxxx> |
| Date: | Mon, 4 Aug 2008 17:58:11 +0800 |
| Cc: | |
| Delivery-date: | 2008年8月04日 02:59:29 -0700 |
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| Sender: | xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
| Thread-index: | Acj2GJmZDtZGba9dR7mgSpRD3s3CIQ== |
| Thread-topic: | [PATCH][vtd] Fix a missing spin_unlock_irqrestore() |
diff -r f69a23b209c4 xen/drivers/passthrough/vtd/iommu.c
--- a/xen/drivers/passthrough/vtd/iommu.c Fri Aug 01 15:38:07 2008
+0100
+++ b/xen/drivers/passthrough/vtd/iommu.c Mon Aug 04 17:55:53 2008
+0800
@@ -632,7 +632,10 @@ static int iommu_set_root_entry(struct i
iommu->root_maddr = alloc_pgtable_maddr();
if ( iommu->root_maddr == 0 )
+ {
+ spin_unlock_irqrestore(&iommu->register_lock, flags);
return -ENOMEM;
+ }
dmar_writeq(iommu->reg, DMAR_RTADDR_REG, iommu->root_maddr);
cmd = iommu->gcmd | DMA_GCMD_SRTP;
Signed-off-by: Dexuan Cui <dexuan.cui@xxxxxxxxx>
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