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drm/ttm: fix missing NULL check in ttm_device_swapout

Resources about to be destructed are not tied to BOs any more.

Christian König committed 4 years ago

Commit 81b0d0e1 parent 4527d471 file · +5 −1Browse files

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drivers/gpu/drm/ttm/ttm_device.c+5−1
@@ -156,8 +156,12 @@ int ttm_device_swapout(struct ttm_device *bdev, struct ttm_operation_ctx *ctx, · 155 unmodified lines
156 156
157 ttm_resource_manager_for_each_res(man, &cursor, res) {157 ttm_resource_manager_for_each_res(man, &cursor, res) {
158 struct ttm_buffer_object *bo = res->bo;158 struct ttm_buffer_object *bo = res->bo;
159 uint32_t num_pages = PFN_UP(bo->base.size);159 uint32_t num_pages;
160 160
161 if (!bo)
162 continue;
163
164 num_pages = PFN_UP(bo->base.size);
161 ret = ttm_bo_swapout(bo, ctx, gfp_flags);165 ret = ttm_bo_swapout(bo, ctx, gfp_flags);
162 /* ttm_bo_swapout has dropped the lru_lock */166 /* ttm_bo_swapout has dropped the lru_lock */
163 if (!ret)167 if (!ret)

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