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drm/tegra: gem: Use dma_get_sgtable() 

Rather than manually creating an SG table in an incorrect way, let the
standard dma_get_sgtable() function do it.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2018-06-08 14:56:04 +02:00
parent 7e3c53a096
commit d81f3431e6
1 changed files with 2 additions and 4 deletions
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6
drivers/gpu/drm/tegra/gem.c
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@ -520,11 +520,9 @@ tegra_gem_prime_map_dma_buf(struct dma_buf_attachment *attach,
if (dma_map_sg(attach->dev, sgt->sgl, sgt->nents, dir) == 0)
goto free;
} else {
if (sg_alloc_table(sgt, 1, GFP_KERNEL))
if (dma_get_sgtable(attach->dev, sgt, bo->vaddr, bo->iova,
gem->size) < 0)
goto free;
sg_dma_address(sgt->sgl) = bo->iova;
sg_dma_len(sgt->sgl) = gem->size;
}
return sgt;