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iommu/tegra: gart: Fix gart_iommu_unmap()

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It must return the number of unmapped bytes on success, returning 0 means
that unmapping failed and in result only one page is unmapped.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Dmitry Osipenko 2018-04-09 23:07:20 +03:00 committed by Joerg Roedel
parent 40c9b882fa
commit 130a2fdf0b
1 changed files with 1 additions and 1 deletions
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2
drivers/iommu/tegra-gart.c
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@ -313,7 +313,7 @@ static size_t gart_iommu_unmap(struct iommu_domain *domain, unsigned long iova,
gart_set_pte(gart, iova, 0);
FLUSH_GART_REGS(gart);
spin_unlock_irqrestore(&gart->pte_lock, flags);
return 0;
return bytes;
}
static phys_addr_t gart_iommu_iova_to_phys(struct iommu_domain *domain,