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iommu/amd: Remove an unneeded condition 

get_device_id() returns an unsigned short device id.  It never fails and
it never returns a negative so we can remove this condition.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Dan Carpenter 2016-01-07 12:36:06 +03:00 committed by Joerg Roedel
parent a639a8eecf
commit 1fb260bc00
1 changed files with 3 additions and 5 deletions
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8
drivers/iommu/amd_iommu.c
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@ -3857,11 +3857,9 @@ static struct irq_domain *get_irq_domain(struct irq_alloc_info *info)
case X86_IRQ_ALLOC_TYPE_MSI:
case X86_IRQ_ALLOC_TYPE_MSIX:
devid = get_device_id(&info->msi_dev->dev);
if (devid >= 0) {
iommu = amd_iommu_rlookup_table[devid];
if (iommu)
return iommu->msi_domain;
}
iommu = amd_iommu_rlookup_table[devid];
if (iommu)
return iommu->msi_domain;
break;
default:
break;