Signed-off-by: Chris Metcalf <cmetc...@tilera.com>
---
arch/tile/kernel/pci-dma.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/tile/kernel/pci-dma.c b/arch/tile/kernel/pci-dma.c
index 7e98371..d16cfc1 100644
--- a/arch/tile/kernel/pci-dma.c
+++ b/arch/tile/kernel/pci-dma.c
@@ -36,8 +36,9 @@ static void *tile_dma_alloc_coherent(struct device *dev,
size_t size,
dma_addr_t *dma_handle, gfp_t gfp,
struct dma_attrs *attrs)
{
- u64 dma_mask = dev->coherent_dma_mask ?: DMA_BIT_MASK(32);
- int node = dev_to_node(dev);
+ u64 dma_mask = (dev && dev->coherent_dma_mask) ?
+ dev->coherent_dma_mask : DMA_BIT_MASK(32);
+ int node = dev ? dev_to_node(dev) : 0;
int order = get_order(size);
struct page *pg;
dma_addr_t addr;
--
1.8.3.1
--
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