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-rw-r--r--linux-core/drm_ttm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/linux-core/drm_ttm.c b/linux-core/drm_ttm.c
index 8a44070d..1a61ef62 100644
--- a/linux-core/drm_ttm.c
+++ b/linux-core/drm_ttm.c
@@ -264,7 +264,7 @@ int drm_ttm_set_user(struct drm_ttm *ttm,
ttm->user_mm = mm;
ttm->dummy_read_page = dummy_read_page;
- ttm->page_flags = DRM_TTM_PAGE_USER |
+ ttm->page_flags |= DRM_TTM_PAGE_USER |
((write) ? DRM_TTM_PAGE_USER_WRITE : 0);