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convert swiotlb to use dma_get_mask

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swiotlb can use dma_get_mask() instead of the homegrown function.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: tony.luck@intel.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
FUJITA Tomonori 2008-09-19 02:02:05 +09:00 • committed by Ingo Molnar
parent f6a32a36ab
commit 07a2c01a0c
2 changed files with 2 additions and 6 deletions
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2
include/linux/dma-mapping.h
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@ -65,7 +65,7 @@ static inline int is_buffer_dma_capable(u64 mask, dma_addr_t addr, size_t size)
static inline u64 dma_get_mask(struct device *dev)
{
if (dev->dma_mask && *dev->dma_mask)
if (dev && dev->dma_mask && *dev->dma_mask)
return *dev->dma_mask;
return DMA_32BIT_MASK;
}