drm/exynos: free sg object if dma_map_sg is failed
This patch releases sgt's sg object allocated by sgt_alloc_table correctly. When exynos_gem_map_dma_buf was called by dma_buf_map_attachmemt(), the sgt's sg object was allocated by sg_alloc_tale() so if dma_map_sg() is failed, the sg object should be released. Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
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@ -110,6 +110,7 @@ static struct sg_table *
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nents = dma_map_sg(attach->dev, sgt->sgl, sgt->orig_nents, dir);
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if (!nents) {
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DRM_ERROR("failed to map sgl with iommu.\n");
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sg_free_table(sgt);
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sgt = ERR_PTR(-EIO);
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goto err_unlock;
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}
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