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drm/exynos: free sg object if dma_map_sg is failed

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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>
This commit is contained in:
Inki Dae 2013-01-11 13:38:28 +09:00
parent e7808df1af
commit 420ae1e262
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/exynos/exynos_drm_dmabuf.c
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@ -110,6 +110,7 @@ static struct sg_table *
nents = dma_map_sg(attach->dev, sgt->sgl, sgt->orig_nents, dir);
if (!nents) {
DRM_ERROR("failed to map sgl with iommu.\n");
sg_free_table(sgt);
sgt = ERR_PTR(-EIO);
goto err_unlock;
}