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tile PCI DMA: handle a NULL dev argument properly
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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1 changed files with 3 additions and 2 deletions
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@ -36,8 +36,9 @@ static void *tile_dma_alloc_coherent(struct device *dev, size_t size,
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dma_addr_t *dma_handle, gfp_t gfp,
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struct dma_attrs *attrs)
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{
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u64 dma_mask = dev->coherent_dma_mask ?: DMA_BIT_MASK(32);
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int node = dev_to_node(dev);
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u64 dma_mask = (dev && dev->coherent_dma_mask) ?
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dev->coherent_dma_mask : DMA_BIT_MASK(32);
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int node = dev ? dev_to_node(dev) : 0;
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int order = get_order(size);
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struct page *pg;
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dma_addr_t addr;
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