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-rw-r--r--drivers/gpu/drm/ttm/ttm_bo_util.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index 7cc904d..8369e35c 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -348,7 +348,9 @@ int ttm_bo_move_memcpy(struct ttm_buffer_object *bo,
if (old_iomap == NULL && ttm == NULL)
goto out2;
- if (ttm->state == tt_unpopulated) {
+ /* TTM might be null for moves within the same region.
+ */
+ if (ttm && ttm->state == tt_unpopulated) {
ret = ttm->bdev->driver->ttm_tt_populate(ttm);
if (ret) {
/* if we fail here don't nuke the mm node
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