diff options
| author | Paul Mackerras <paulus@samba.org> | 2006-02-08 09:43:08 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-02-08 09:43:08 +1100 |
| commit | 8f75015f33c3005e0bbf83ffc0d5e0b4262cc03d (patch) | |
| tree | a3c34ad86ccdc904bb43af6cd1cb163231c29276 /arch/powerpc/kernel/iommu.c | |
| parent | 076d022c566fddde41fd4a858dd24bacad8304d7 (diff) | |
| parent | e060e084e7d9e1c62d02cb6b8d3fe07db5317eaa (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
Diffstat (limited to 'arch/powerpc/kernel/iommu.c')
| -rw-r--r-- | arch/powerpc/kernel/iommu.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c index 4d9b4388918..946f3219fd2 100644 --- a/arch/powerpc/kernel/iommu.c +++ b/arch/powerpc/kernel/iommu.c @@ -334,9 +334,6 @@ int iommu_map_sg(struct device *dev, struct iommu_table *tbl, spin_unlock_irqrestore(&(tbl->it_lock), flags); - /* Make sure updates are seen by hardware */ - mb(); - DBG("mapped %d elements:\n", outcount); /* For the sake of iommu_unmap_sg, we clear out the length in the @@ -347,6 +344,10 @@ int iommu_map_sg(struct device *dev, struct iommu_table *tbl, outs->dma_address = DMA_ERROR_CODE; outs->dma_length = 0; } + + /* Make sure updates are seen by hardware */ + mb(); + return outcount; failure: @@ -358,6 +359,8 @@ int iommu_map_sg(struct device *dev, struct iommu_table *tbl, npages = (PAGE_ALIGN(s->dma_address + s->dma_length) - vaddr) >> PAGE_SHIFT; __iommu_free(tbl, vaddr, npages); + s->dma_address = DMA_ERROR_CODE; + s->dma_length = 0; } } spin_unlock_irqrestore(&(tbl->it_lock), flags); |