Commit 16c50dcf authored by Laurent Pinchart's avatar Laurent Pinchart Committed by Will Deacon
Browse files

iommu/arm-smmu: Return 0 on unmap failure 



The IOMMU core expects the unmap operation to return the number of bytes
that have been unmapped or 0 on failure, a negative return value being
treated like a number of bytes.

Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
parent c9eaa447

drivers/iommu/arm-smmu.c

+1 −1
Original line number Diff line number Diff line
@@ -1499,7 +1499,7 @@ static size_t arm_smmu_unmap(struct iommu_domain *domain, unsigned long iova, 


	ret = arm_smmu_handle_mapping(smmu_domain, iova, 0, size, 0);

	arm_smmu_tlb_inv_context(&smmu_domain->root_cfg);

	return ret ? ret : size;

	return ret ? 0 : size;

}



static phys_addr_t arm_smmu_iova_to_phys(struct iommu_domain *domain,