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dma-mapping: clear dev->dma_ops in arch_teardown_dma_ops

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There is no reason to leave the per-device dma_ops around when
deconfiguring a device, so move this code from arm64 into the
common code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
This commit is contained in:
Christoph Hellwig 2018-08-24 10:29:02 +02:00
parent dc3c05504d
commit 46053c7368
3 changed files with 4 additions and 11 deletions
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5
include/linux/dma-mapping.h
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@ -664,7 +664,10 @@ static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base,
#endif
#ifndef arch_teardown_dma_ops
static inline void arch_teardown_dma_ops(struct device *dev) { }
static inline void arch_teardown_dma_ops(struct device *dev)
{
dev->dma_ops = NULL;
}
#endif
static inline unsigned int dma_get_max_seg_size(struct device *dev)