diff options
| author | Hiroshi Doyu <hdoyu@nvidia.com> | 2013-02-06 19:38:15 +0200 |
|---|---|---|
| committer | Joerg Roedel <joro@8bytes.org> | 2013-02-07 21:57:21 +0100 |
| commit | a3b7256d643dac125f4162cd4f9b603868559b61 (patch) | |
| tree | 55142b79cb946c3ecfd5d4e2dc34ca6c97cc127a | |
| parent | d300356cb92e098f36bece0390358130e35713d4 (diff) | |
| download | lwn-a3b7256d643dac125f4162cd4f9b603868559b61.tar.gz lwn-a3b7256d643dac125f4162cd4f9b603868559b61.zip | |
iommu/tegra: smmu: Fix incorrect mask for regbase
This fixes kernel crash because of BUG() in register address
validation.
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
| -rw-r--r-- | drivers/iommu/tegra-smmu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index 774728313f51..117427e6004e 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) |