From: Christian König <[email protected]>

[ Upstream commit d330099115597bbc238d6758a4930e72b49ea9ba ]

AGP for example doesn't have a dma_address array.

Signed-off-by: Christian König <[email protected]>
Acked-by: Alex Deucher <[email protected]>
Link: 
https://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Sasha Levin <[email protected]>
---
 drivers/gpu/drm/nouveau/nouveau_bo.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c 
b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 78f520d05de9..58c310930bf2 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -458,7 +458,7 @@ nouveau_bo_sync_for_device(struct nouveau_bo *nvbo)
        struct ttm_dma_tt *ttm_dma = (struct ttm_dma_tt *)nvbo->bo.ttm;
        int i;
 
-       if (!ttm_dma)
+       if (!ttm_dma || !ttm_dma->dma_address)
                return;
 
        /* Don't waste time looping if the object is coherent */
@@ -478,7 +478,7 @@ nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo)
        struct ttm_dma_tt *ttm_dma = (struct ttm_dma_tt *)nvbo->bo.ttm;
        int i;
 
-       if (!ttm_dma)
+       if (!ttm_dma || !ttm_dma->dma_address)
                return;
 
        /* Don't waste time looping if the object is coherent */
-- 
2.30.2

Reply via email to