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author | David S. Miller <davem@davemloft.net> | 2014-01-14 14:37:09 -0800 |
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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 | a49da8811e71c5355b52c65ee32976741d5834cd (diff) | |
parent | fdc3452cd2c7b2bfe0f378f92123f4f9a98fa2bd (diff) | |
download | op-kernel-dev-0a379e21c503b2ff66b44d588df9f231e9b0b9ca.zip op-kernel-dev-0a379e21c503b2ff66b44d588df9f231e9b0b9ca.tar.gz |
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 1a49c7776..8752918 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: |