[PATCH V2 0/3] ublk_drv: cleanup and bugfix

[ZiyangZhang <ZiyangZhang@linux.alibaba.com>]

The following 3 patches are cleanup and bugfix. Patch 1 and 2
simply inline a function and update comments for ublk_drv's
aborting machemism.

Patch 3 fix a null-deref bug reported by myself. Ming gives out a
patch and I integrate it with more comments on this bug.

From V1:
- reserve comment on __ublk_fail_req() to notify that aborted
  requests may be issued again.
- only reference ublk_io in branch of not using task_work_add()

ZiyangZhang (3):
  ublk_drv: check ubq_daemon_is_dying() in __ublk_rq_task_work()
  ublk_drv: update comment for __ublk_fail_req()
  ublk_drv: do not add a re-issued request aborted previously to
    ioucmd's task_work

 drivers/block/ublk_drv.c | 28 ++++++++++++++++++++++------
 1 file changed, 22 insertions(+), 6 deletions(-)

-- 
2.27.0