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dma-mapping regression fix for 5.3

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- ensure that dma_addressing_limited doesn't crash on devices
    without a dma mask (Eric Auger)
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Merge tag 'dma-mapping-5.3-2' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping regression fix from Christoph Hellwig:
 "Ensure that dma_addressing_limited doesn't crash on devices without a
  dma mask (Eric Auger)"

* tag 'dma-mapping-5.3-2' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: use dma_get_mask in dma_addressing_limited
This commit is contained in:
Linus Torvalds 2019-07-24 09:28:55 -07:00
commit c2626876c2
1 changed files with 2 additions and 2 deletions
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4
include/linux/dma-mapping.h
View file

@ -689,8 +689,8 @@ static inline int dma_coerce_mask_and_coherent(struct device *dev, u64 mask)
*/
static inline bool dma_addressing_limited(struct device *dev)
{
return min_not_zero(*dev->dma_mask, dev->bus_dma_mask) <
dma_get_required_mask(dev);
return min_not_zero(dma_get_mask(dev), dev->bus_dma_mask) <
dma_get_required_mask(dev);
}
#ifdef CONFIG_ARCH_HAS_SETUP_DMA_OPS