Reviewed-by: Thomas Hellström thellstrom@vmware.com Signed-off-by: Jakob Bornecrantz jakob@vmware.com Cc: Dave Airlie airlied@redhat.com Cc: dri-devel@lists.freedesktop.org Cc: stable@vger.kernel.org --- 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