change v4
Hello Jerome Glisse,
This is a semi-automatic email about new static checker warnings.
The patch dc97b3409a79: "drm/ttm: callback move_notify any time bo
placement change v4" from Nov 18, 2011, leads to the following Smatch
complaint:
drivers/gpu/drm/nouveau/nouveau_bo.c +818 nouveau_bo_move_ntfy()
warn: variable dereferenced before check 'new_mem' (see line 813)
drivers/gpu/drm/nouveau/nouveau_bo.c
812 {
813 struct nouveau_mem *node = new_mem->mm_node;
^^^^^^^^^^^^^^^^
Old dereference. new_mem can be NULL here these days.
814 struct nouveau_bo *nvbo = nouveau_bo(bo);
815 struct nouveau_vma *vma;
816
817 list_for_each_entry(vma, &nvbo->vma_list, head) {
818 if (new_mem && new_mem->mem_type == TTM_PL_VRAM) {
^^^^^^^
new check.
819 nouveau_vm_map(vma, new_mem->mm_node);
820 } else
regards,
dan carpenter
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