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| author |   David S. Miller <davem@davemloft.net> | 2014-01-14 14:37:09 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-01-14 14:42:42 -0800 |
| commit | 0a379e21c503b2ff66b44d588df9f231e9b0b9ca (patch) | |
| tree | 22b875fcf4b67fcd007726f00c5fc1748ce985d0 /drivers/dma/ioat/dma.c | |
| parent | Merge branch 'skb_checksum_help' (diff) | |
| parent | net: usbnet: fix SG initialisation (diff) | |
| download | linux-dev-0a379e21c503b2ff66b44d588df9f231e9b0b9ca.tar.xz linux-dev-0a379e21c503b2ff66b44d588df9f231e9b0b9ca.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/dma/ioat/dma.c')
| -rw-r--r-- | drivers/dma/ioat/dma.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c index 1a49c777607c..87529181efcc 100644 --- a/drivers/dma/ioat/dma.c +++ b/drivers/dma/ioat/dma.c @@ -817,7 +817,15 @@ int ioat_dma_self_test(struct ioatdma_device *device) } dma_src = dma_map_single(dev, src, IOAT_TEST_SIZE, DMA_TO_DEVICE); + if (dma_mapping_error(dev, dma_src)) { + dev_err(dev, "mapping src buffer failed\n"); + goto free_resources; + } dma_dest = dma_map_single(dev, dest, IOAT_TEST_SIZE, DMA_FROM_DEVICE); + if (dma_mapping_error(dev, dma_dest)) { + dev_err(dev, "mapping dest buffer failed\n"); + goto unmap_src; + } flags = DMA_PREP_INTERRUPT; tx = device->common.device_prep_dma_memcpy(dma_chan, dma_dest, dma_src, IOAT_TEST_SIZE, flags); @@ -855,8 +863,9 @@ int ioat_dma_self_test(struct ioatdma_device *device) } unmap_dma: - dma_unmap_single(dev, dma_src, IOAT_TEST_SIZE, DMA_TO_DEVICE); dma_unmap_single(dev, dma_dest, IOAT_TEST_SIZE, DMA_FROM_DEVICE); +unmap_src: + dma_unmap_single(dev, dma_src, IOAT_TEST_SIZE, DMA_TO_DEVICE); free_resources: dma->device_free_chan_resources(dma_chan); out: |