diff options
Diffstat (limited to 'kernel/dma/mapping.c')
| -rw-r--r-- | kernel/dma/mapping.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c index c986639044e9..8233811901cd 100644 --- a/kernel/dma/mapping.c +++ b/kernel/dma/mapping.c @@ -981,6 +981,9 @@ size_t dma_max_mapping_size(struct device *dev) const struct dma_map_ops *ops = get_dma_ops(dev); size_t size = SIZE_MAX; + if (!dev->dma_mask) + return 0; + if (dma_map_direct(dev, ops)) size = dma_direct_max_mapping_size(dev); else if (use_dma_iommu(dev)) |