281       MatNullSpace nullSpace;  in DMSelectFields_Private()  local
283       PetscCall((*(*subdm)->nullspaceConstructors[0])(*subdm, 0, 0, &nullSpace));  in DMSelectFields_Private()
284       PetscCall(PetscObjectCompose((PetscObject)*is, "nullspace", (PetscObject)nullSpace));  in DMSelectFields_Private()
285       PetscCall(MatNullSpaceDestroy(&nullSpace));  in DMSelectFields_Private()
379     MatNullSpace nullSpace;  in DMSelectFields_Private()  local
381     PetscCall((*(*subdm)->nullspaceConstructors[nf])(*subdm, of, nf, &nullSpace));  in DMSelectFields_Private()
382     PetscCall(PetscObjectCompose((PetscObject)*is, "nullspace", (PetscObject)nullSpace));  in DMSelectFields_Private()
383     PetscCall(MatNullSpaceDestroy(&nullSpace));  in DMSelectFields_Private()
550     MatNullSpace nullSpace;  in DMCreateSectionSuperDM()  local
552     PetscCall((*(*superdm)->nullspaceConstructors[nullf])(*superdm, oldf, nullf, &nullSpace));  in DMCreateSectionSuperDM()
553     PetscCall(PetscObjectCompose((PetscObject)(*is)[nullf], "nullspace", (PetscObject)nullSpace));  in DMCreateSectionSuperDM()
554     PetscCall(MatNullSpaceDestroy(&nullSpace));  in DMCreateSectionSuperDM()