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| author | John W. Linville <linville@tuxdriver.com> | 2010-08-16 14:40:44 -0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-08-16 14:40:44 -0400 |
| commit | 9714d315d28aef77a097fe905b25cc273c3d72ad (patch) | |
| tree | 0ae1150b0723e925785ce774c3554f29fda050f6 /arch/x86/kernel/amd_iommu.c | |
| parent | 84c164a34ffe67908a932a2d641ec1a80c2d5435 (diff) | |
| parent | 6ccf15a1a76d2ff915cdef6ae4d12d0170087118 (diff) | |
| download | talos-op-linux-9714d315d28aef77a097fe905b25cc273c3d72ad.tar.gz talos-op-linux-9714d315d28aef77a097fe905b25cc273c3d72ad.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
Diffstat (limited to 'arch/x86/kernel/amd_iommu.c')
| -rw-r--r-- | arch/x86/kernel/amd_iommu.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index fa5a1474cd18..0d20286d78c6 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -1487,6 +1487,7 @@ static int __attach_device(struct device *dev, struct protection_domain *domain) { struct iommu_dev_data *dev_data, *alias_data; + int ret; dev_data = get_dev_data(dev); alias_data = get_dev_data(dev_data->alias); @@ -1498,13 +1499,14 @@ static int __attach_device(struct device *dev, spin_lock(&domain->lock); /* Some sanity checks */ + ret = -EBUSY; if (alias_data->domain != NULL && alias_data->domain != domain) - return -EBUSY; + goto out_unlock; if (dev_data->domain != NULL && dev_data->domain != domain) - return -EBUSY; + goto out_unlock; /* Do real assignment */ if (dev_data->alias != dev) { @@ -1520,10 +1522,14 @@ static int __attach_device(struct device *dev, atomic_inc(&dev_data->bind); + ret = 0; + +out_unlock: + /* ready */ spin_unlock(&domain->lock); - return 0; + return ret; } /* @@ -2324,10 +2330,6 @@ int __init amd_iommu_init_dma_ops(void) iommu_detected = 1; swiotlb = 0; -#ifdef CONFIG_GART_IOMMU - gart_iommu_aperture_disabled = 1; - gart_iommu_aperture = 0; -#endif /* Make the driver finally visible to the drivers */ dma_ops = &amd_iommu_dma_ops; |
