[Xen-devel] [PATCH] vt-d: avoid obtaining iommu->register_lock too early in dma_msi_set_affinity()

To: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
From: "Cui, Dexuan" <dexuan.cui@xxxxxxxxx>
Date: Mon, 7 Sep 2009 16:30:52 +0800
Accept-language: zh-CN, en-US
Acceptlanguage: zh-CN, en-US
Cc:
Delivery-date: Mon, 07 Sep 2009 01:30:39 -0700
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
Thread-index: AcovlYL0rVNkTrizS6Oqhq+YYMH4Sg==
Thread-topic: [PATCH] vt-d: avoid obtaining iommu->register_lock too early in dma_msi_set_affinity()

If set_desc_affinity() fails, the current code doesn't release the spinlock.
We should obtain the lock at a later place.

Thanks,
-- Dexuan

Attachment: iommu.c.patch
Description: iommu.c.patch

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