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-rw-r--r--drivers/iommu/msm_iommu.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/iommu/msm_iommu.c b/drivers/iommu/msm_iommu.c
index 1a584e077c61..d1733f672f16 100644
--- a/drivers/iommu/msm_iommu.c
+++ b/drivers/iommu/msm_iommu.c
@@ -543,6 +543,13 @@ static int msm_iommu_unmap(struct iommu_domain *domain, unsigned long va,
}
ret = __flush_iotlb(domain);
+
+ /*
+ * the IOMMU API requires us to return the order of the unmapped
+ * page (on success).
+ */
+ if (!ret)
+ ret = order;
fail:
spin_unlock_irqrestore(&msm_iommu_lock, flags);
return ret;