From a3b7256d643dac125f4162cd4f9b603868559b61 Mon Sep 17 00:00:00 2001 From: Hiroshi Doyu Date: Wed, 6 Feb 2013 19:38:15 +0200 Subject: [PATCH] iommu/tegra: smmu: Fix incorrect mask for regbase This fixes kernel crash because of BUG() in register address validation. Signed-off-by: Hiroshi Doyu Signed-off-by: Joerg Roedel --- drivers/iommu/tegra-smmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index 7747283..117427e 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -1191,7 +1191,7 @@ static int tegra_smmu_probe(struct platform_device *pdev) smmu->rege[i] = smmu->regs[i] + resource_size(res) - 1; } /* Same as "mc" 1st regiter block start address */ - smmu->regbase = (void __iomem *)((u32)smmu->regs[0] & ~PAGE_MASK); + smmu->regbase = (void __iomem *)((u32)smmu->regs[0] & PAGE_MASK); err = of_get_dma_window(dev->of_node, NULL, 0, NULL, &base, &size); if (err) -- 2.7.4