From 9e38b13ea5f9b0a513e4a31f8cc964d267e3d4bd Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 8 Nov 2016 09:43:50 +1000 Subject: [PATCH] drm/nouveau/device/pci: fix oops if no mmu subdev present Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nvkm/engine/device/pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/pci.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/pci.c index 0030cd9543b2..74a1ffa425f7 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/device/pci.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/pci.c @@ -1687,7 +1687,7 @@ nvkm_device_pci_new(struct pci_dev *pci_dev, const char *cfg, const char *dbg, * This is necessary for platforms where the default DMA mask of 32 * does not cover any system memory, i.e., when all RAM is > 4 GB. */ - if (subdev_mask & BIT(NVKM_SUBDEV_MMU)) + if (pdev->device.mmu) dma_set_mask_and_coherent(&pci_dev->dev, DMA_BIT_MASK(pdev->device.mmu->dma_bits));