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| author |   FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2009-11-15 21:19:54 +0900 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2009-11-17 07:53:21 +0100 |
| commit | 1f7564ca831a00b21bb493ef174c845b2ba9e64d (patch) | |
| tree | e4f536471c454d4c85398eabbbde759ca105e0f3 /arch/x86/kernel/pci-calgary_64.c | |
| parent | x86: Kill bad_dma_address variable (diff) | |
| download | linux-dev-1f7564ca831a00b21bb493ef174c845b2ba9e64d.tar.xz linux-dev-1f7564ca831a00b21bb493ef174c845b2ba9e64d.zip | |
x86: Calgary: Remove unnecessary DMA_ERROR_CODE usage
This cleans up iommu_alloc() a bit and removes unnecessary
DMA_ERROR_CODE usage.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: muli@il.ibm.com
Cc: joerg.roedel@amd.com
LKML-Reference: <1258287594-8777-4-git-send-email-fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/pci-calgary_64.c')
| -rw-r--r-- | arch/x86/kernel/pci-calgary_64.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c index af9f436096a2..849a0995d970 100644 --- a/arch/x86/kernel/pci-calgary_64.c +++ b/arch/x86/kernel/pci-calgary_64.c @@ -261,12 +261,15 @@ static dma_addr_t iommu_alloc(struct device *dev, struct iommu_table *tbl, void *vaddr, unsigned int npages, int direction) { unsigned long entry; - dma_addr_t ret = DMA_ERROR_CODE; + dma_addr_t ret; entry = iommu_range_alloc(dev, tbl, npages); - if (unlikely(entry == DMA_ERROR_CODE)) - goto error; + if (unlikely(entry == DMA_ERROR_CODE)) { + printk(KERN_WARNING "Calgary: failed to allocate %u pages in " + "iommu %p\n", npages, tbl); + return DMA_ERROR_CODE; + } /* set the return dma address */ ret = (entry << PAGE_SHIFT) | ((unsigned long)vaddr & ~PAGE_MASK); @@ -274,13 +277,7 @@ static dma_addr_t iommu_alloc(struct device *dev, struct iommu_table *tbl, /* put the TCEs in the HW table */ tce_build(tbl, entry, npages, (unsigned long)vaddr & PAGE_MASK, direction); - return ret; - -error: - printk(KERN_WARNING "Calgary: failed to allocate %u pages in " - "iommu %p\n", npages, tbl); - return DMA_ERROR_CODE; } static void iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr, |