[PATCH v4 0/4] Call blk_mq_free_tag_set() earlier

[Bart Van Assche <bvanassche@acm.org>]

Hi Martin,

This patch series fixes a recently reported use-after-free in the SRP driver.
Please consider this patch series for kernel v5.20.

Changes compared to v3:
- Added a patch to delay scsi_remove_target() until dependent devices have been
  removed.
- Split a patch into two patches.

Changes compared to v2:
- Dropped the patch that simplifies scsi_forget_host().
- Replaced patch 2/3 with a patch from Ming Lei.

Changes compared to v1:
- Expanded this series from one to three patches.
- Fixed the description of patch 3/3.

Bart Van Assche (2):
  scsi: core: Make sure that targets outlive devices
  scsi: core: Call blk_mq_free_tag_set() earlier

Ming Lei (2):
  scsi: core: Make sure that hosts outlive targets
  scsi: core: Simplify LLD module reference counting

 drivers/scsi/hosts.c       | 18 +++++++++++++-----
 drivers/scsi/scsi.c        |  9 ++++++---
 drivers/scsi/scsi_lib.c    |  3 +++
 drivers/scsi/scsi_scan.c   |  9 +++++++++
 drivers/scsi/scsi_sysfs.c  | 29 +++++++++++++++++------------
 include/scsi/scsi_device.h |  2 ++
 include/scsi/scsi_host.h   |  3 +++
 7 files changed, 53 insertions(+), 20 deletions(-)