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path: root/drivers/iommu/omap-iommu.c
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Diffstat (limited to 'drivers/iommu/omap-iommu.c')
-rw-r--r--drivers/iommu/omap-iommu.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index 4311bc32cfa6..bd5f6064c74a 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -1081,18 +1081,13 @@ static int omap_iommu_unmap(struct iommu_domain *domain, unsigned long da,
1081 struct omap_iommu_domain *omap_domain = domain->priv; 1081 struct omap_iommu_domain *omap_domain = domain->priv;
1082 struct omap_iommu *oiommu = omap_domain->iommu_dev; 1082 struct omap_iommu *oiommu = omap_domain->iommu_dev;
1083 struct device *dev = oiommu->dev; 1083 struct device *dev = oiommu->dev;
1084 size_t bytes = PAGE_SIZE << order; 1084 size_t unmap_size;
1085 size_t ret;
1086 1085
1087 dev_dbg(dev, "unmapping da 0x%lx size 0x%x\n", da, bytes); 1086 dev_dbg(dev, "unmapping da 0x%lx order %d\n", da, order);
1088 1087
1089 ret = iopgtable_clear_entry(oiommu, da); 1088 unmap_size = iopgtable_clear_entry(oiommu, da);
1090 if (ret != bytes) {
1091 dev_err(dev, "entry @ 0x%lx was %d; not %d\n", da, ret, bytes);
1092 return -EINVAL;
1093 }
1094 1089
1095 return 0; 1090 return unmap_size ? get_order(unmap_size) : -EINVAL;
1096} 1091}
1097 1092
1098static int 1093static int