On 10/18/2013 03:18 PM, Jakob Bornecrantz wrote:
Reviewed-by: Thomas Hellström <thellstrom@xxxxxxxxxx>
Signed-off-by: Jakob Bornecrantz <jakob@xxxxxxxxxx>
Cc: Dave Airlie <airlied@xxxxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx
---
drivers/gpu/drm/ttm/ttm_bo_util.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index 8be35c8..037f101 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -342,7 +342,9 @@ 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
LGTM. There are a couple of other fixes needed in this function as well.
/Thomas
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