x86: convert dma_alloc_coherent to use is_device_dma_capable

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/include/asm-x86/dma-mapping.h b/include/asm-x86/dma-mapping.h
index f43420b8c5731940de742bc53477adc78b331571..f408e6dd1778d8c69e5b326dbdddd80ec2617eee 100644 (file)
--- a/include/asm-x86/dma-mapping.h
+++ b/include/asm-x86/dma-mapping.h
@@ -278,7 +278,7 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
                gfp |= GFP_DMA;
        }
 
-       if (!dev->dma_mask)
+       if (!is_device_dma_capable(dev))
                return NULL;
 
        if (!ops->alloc_coherent)