The dma_map_sgtable() call (used to invalidate cache) overwrites sgt->nents
with 1, so msm_iommu_pagetable_map maps only the first physical segment.

To fix this problem use for_each_sgtable_sg(), which uses orig_nents.

Fixes: b145c6e65eb0 ("drm/msm: Add support to create a local pagetable")
Signed-off-by: Jonathan Marek <jonat...@marek.ca>
---
v2: use for_each_sgtable_sg and update commit message

 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..a54ed354578b5 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_sgtable_sg(sgt, sg, i) {
                size_t size = sg->length;
                phys_addr_t phys = sg_phys(sg);
 
-- 
2.26.1

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