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Diffstat (limited to 'arch/arm/mm/dma-mapping.c')
| -rw-r--r-- | arch/arm/mm/dma-mapping.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index daefd01d3e4c..afa797ff4393 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -42,6 +42,7 @@ static u64 get_coherent_dma_mask(struct device *dev) if (dev) { mask = dev->coherent_dma_mask; + mask = (mask - 1) | mask; /* * Sanity check the DMA mask - it must be non-zero, and |