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drm/tegra: gem: Always map SG tables for DMA-BUFs

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When an importer wants to map a DMA-BUF, make sure to always actually
map it, irrespective of whether the buffer is contiguous or not.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2018-06-08 14:59:13 +02:00
parent d81f3431e6
commit 8b5a3c17a2
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/tegra/gem.c
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@ -516,15 +516,15 @@ tegra_gem_prime_map_dma_buf(struct dma_buf_attachment *attach,
for_each_sg(sgt->sgl, sg, bo->num_pages, i)
sg_set_page(sg, bo->pages[i], PAGE_SIZE, 0);
if (dma_map_sg(attach->dev, sgt->sgl, sgt->nents, dir) == 0)
goto free;
} else {
if (dma_get_sgtable(attach->dev, sgt, bo->vaddr, bo->iova,
gem->size) < 0)
goto free;
}
if (dma_map_sg(attach->dev, sgt->sgl, sgt->nents, dir) == 0)
goto free;
return sgt;
free: