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| author | Logan Gunthorpe <logang@deltatee.com> | 2021-07-29 23:15:21 +0300 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2021-08-09 18:13:04 +0300 |
| commit | ad8f36e4b6b1c826a0daa5fda2c5839205b5aa8b (patch) | |
| tree | 103f7a59b05f9a574f088317222e88ee2dedda1a /drivers/iommu/iommu.c | |
| parent | c81be74e7d790f090d3c8a52e20a334dc2506a3f (diff) | |
| download | linux-ad8f36e4b6b1c826a0daa5fda2c5839205b5aa8b.tar.xz | |
iommu: return full error code from iommu_map_sg[_atomic]()
Convert to ssize_t return code so the return code from __iommu_map()
can be returned all the way down through dma_iommu_map_sg().
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/iommu/iommu.c')
| -rw-r--r-- | drivers/iommu/iommu.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 5419c4b9f27a..bf971b4e34aa 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -2567,9 +2567,9 @@ size_t iommu_unmap_fast(struct iommu_domain *domain, } EXPORT_SYMBOL_GPL(iommu_unmap_fast); -static size_t __iommu_map_sg(struct iommu_domain *domain, unsigned long iova, - struct scatterlist *sg, unsigned int nents, int prot, - gfp_t gfp) +static ssize_t __iommu_map_sg(struct iommu_domain *domain, unsigned long iova, + struct scatterlist *sg, unsigned int nents, int prot, + gfp_t gfp) { const struct iommu_ops *ops = domain->ops; size_t len = 0, mapped = 0; @@ -2610,19 +2610,18 @@ out_err: /* undo mappings already done */ iommu_unmap(domain, iova, mapped); - return 0; - + return ret; } -size_t iommu_map_sg(struct iommu_domain *domain, unsigned long iova, - struct scatterlist *sg, unsigned int nents, int prot) +ssize_t iommu_map_sg(struct iommu_domain *domain, unsigned long iova, + struct scatterlist *sg, unsigned int nents, int prot) { might_sleep(); return __iommu_map_sg(domain, iova, sg, nents, prot, GFP_KERNEL); } EXPORT_SYMBOL_GPL(iommu_map_sg); -size_t iommu_map_sg_atomic(struct iommu_domain *domain, unsigned long iova, +ssize_t iommu_map_sg_atomic(struct iommu_domain *domain, unsigned long iova, struct scatterlist *sg, unsigned int nents, int prot) { return __iommu_map_sg(domain, iova, sg, nents, prot, GFP_ATOMIC); |