Zhe Weng 44a04733d4 mm/iob: Don't return NULL in iob_pack
We don't want to get a NULL pointer after iob_pack on an IOB chain with
several iobs with length 0, it should return one IOB with length 0.
Otherwise each place calls iob_pack needs to check the result.

Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
2023-04-22 19:26:22 +08:00
..
2021-06-30 06:40:13 -05:00