[PATCH] drm/msm: use orig_nents to iterate over scatterlist with per-process tables

[Jonathan Marek]

This matches the implementation of iommu_map_sgtable() used for the
non-per-process page tables path.

This works around the dma_map_sgtable() call (used to invalidate cache)
overwriting sgt->nents with 1 (which is probably a separate issue).

Fixes: b145c6e65eb0 ("drm/msm: Add support to create a local pagetable")
Signed-off-by: Jonathan Marek <jonathan at marek.ca>
---
 drivers/gpu/drm/msm/msm_iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/msm_iommu.c b/drivers/gpu/drm/msm/msm_iommu.c
index bcaddbba564df..22935ef26a3a1 100644
--- a/drivers/gpu/drm/msm/msm_iommu.c
+++ b/drivers/gpu/drm/msm/msm_iommu.c
@@ -58,7 +58,7 @@ static int msm_iommu_pagetable_map(struct msm_mmu *mmu, u64 iova,
 	u64 addr = iova;
 	unsigned int i;
 
-	for_each_sg(sgt->sgl, sg, sgt->nents, i) {
+	for_each_sg(sgt->sgl, sg, sgt->orig_nents, i) {
 		size_t size = sg->length;
 		phys_addr_t phys = sg_phys(sg);
 
-- 
2.26.1