diff options
Diffstat (limited to 'include/asm-x86/dma-mapping.h')
| -rw-r--r-- | include/asm-x86/dma-mapping.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-x86/dma-mapping.h b/include/asm-x86/dma-mapping.h index 3a9a6f5e681..088c56814aa 100644 --- a/include/asm-x86/dma-mapping.h +++ b/include/asm-x86/dma-mapping.h @@ -254,6 +254,9 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp |= GFP_DMA; } + if (!dev->dma_mask) + return NULL; + if (ops->alloc_coherent) return ops->alloc_coherent(dev, size, dma_handle, gfp); |