From: Thierry Reding treding@nvidia.com
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 --- drivers/gpu/drm/tegra/gem.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c index 3345cce14662..00701cadaceb 100644 --- a/drivers/gpu/drm/tegra/gem.c +++ b/drivers/gpu/drm/tegra/gem.c @@ -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: