[PATCH] drm/ttm: use kvcalloc() instead of kvmalloc_array() in ttm_tt

[Yang Wang]

simplify programming with existing functions.

Signed-off-by: Yang Wang <KevinYang.Wang at amd.com>
---
 drivers/gpu/drm/ttm/ttm_tt.c | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index 79c870a3bef8..cbb3d1fb4caf 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -96,19 +96,20 @@ int ttm_tt_create(struct ttm_buffer_object *bo, bool zero_alloc)
  */
 static int ttm_tt_alloc_page_directory(struct ttm_tt *ttm)
 {
-	ttm->pages = kvmalloc_array(ttm->num_pages, sizeof(void*),
-			GFP_KERNEL | __GFP_ZERO);
+	ttm->pages = kvcalloc(ttm->num_pages, sizeof(void*),
+			      GFP_KERNEL);
 	if (!ttm->pages)
 		return -ENOMEM;
+
 	return 0;
 }
 
 static int ttm_dma_tt_alloc_page_directory(struct ttm_tt *ttm)
 {
-	ttm->pages = kvmalloc_array(ttm->num_pages,
-				    sizeof(*ttm->pages) +
-				    sizeof(*ttm->dma_address),
-				    GFP_KERNEL | __GFP_ZERO);
+	ttm->pages = kvcalloc(ttm->num_pages,
+			      sizeof(*ttm->pages) +
+			      sizeof(*ttm->dma_address),
+			      GFP_KERNEL);
 	if (!ttm->pages)
 		return -ENOMEM;
 
@@ -118,11 +119,13 @@ static int ttm_dma_tt_alloc_page_directory(struct ttm_tt *ttm)
 
 static int ttm_sg_tt_alloc_page_directory(struct ttm_tt *ttm)
 {
-	ttm->dma_address = kvmalloc_array(ttm->num_pages,
-					  sizeof(*ttm->dma_address),
-					  GFP_KERNEL | __GFP_ZERO);
+	ttm->dma_address = kvcalloc(ttm->num_pages,
+				    sizeof(*ttm->dma_address),
+				    GFP_KERNEL);
 	if (!ttm->dma_address)
 		return -ENOMEM;
+
+
 	return 0;
 }
 
-- 
2.25.1