Dereference after null check

Either the check against null is unnecessary, or there may be a null pointer dereference. Pointer is checked against null but then dereferenced anyway
/src/include/cell_inline.h:710: FORWARD_NULL 134149 Comparing "unpack_addr" to null implies that "unpack_addr" might be null.
/src/include/cell_inline.h:939: FORWARD_NULL 134149 Dereferencing null pointer "unpack_addr".