[SRU][Focal][PULL] Focal update: v5.4.88 upstream stable release

[Kamal Mostafa]

This pull request (15 commits) includes the following Focal stable patchsets:

	Focal update: v5.4.88 upstream stable release
	https://bugs.launchpad.net/bugs/1913223

Note also that the 'stable-next' branch head contains this and all prior
pending upstream stable releases.  I recommend fetching and applying just this
reference ('stable-next') instead of each tags/focal-stable-v5.4.xx reference:

   git://kernel.ubuntu.com/ubuntu-stable/ubuntu-stable-focal.git stable-next

 -Kamal

-----

The following changes since commit 85936e9f020fa9a1a21de56eb9f474bee7871330:

  UBUNTU: upstream stable to v5.4.87 (2021-01-25 12:46:08 -0800)

are available in the Git repository at:

  git://kernel.ubuntu.com/ubuntu-stable/ubuntu-stable-focal.git tags/focal-stable-v5.4.88

for you to fetch changes up to 57b3c28cc0fb98cf8d637ac411b0a65482571023:

  UBUNTU: upstream stable to v5.4.88 (2021-01-25 12:47:59 -0800)

----------------------------------------------------------------
Alex Deucher (1):
      Revert "drm/amd/display: Fix memory leaks in S3 resume"

Eric W. Biederman (3):
      rwsem: Implement down_read_killable_nested
      rwsem: Implement down_read_interruptible
      exec: Transform exec_update_mutex into a rw_semaphore

Felix Fietkau (1):
      Revert "mtd: spinand: Fix OOB read"

Greg Kroah-Hartman (1):
      Linux 5.4.88

Jonathan Cameron (1):
      iio:imu:bmi160: Fix alignment and data leak issues

Josh Poimboeuf (1):
      kdev_t: always inline major/minor helper functions

Kamal Mostafa (1):
      UBUNTU: upstream stable to v5.4.88

Miklos Szeredi (1):
      fuse: fix bad inode

Tudor Ambarus (1):
      dmaengine: at_hdmac: Substitute kzalloc with kmalloc

Yu Kuai (2):
      dmaengine: at_hdmac: add missing put_device() call in at_dma_xlate()
      dmaengine: at_hdmac: add missing kfree() call in at_dma_xlate()

Zhang Xiaohui (1):
      mwifiex: Fix possible buffer overflows in mwifiex_cmd_802_11_ad_hoc_start

peterz at infradead.org (1):
      perf: Break deadlock involving exec_update_mutex

 Makefile                                          |  2 +-
 debian.master/upstream-stable                     |  2 +-
 drivers/dma/at_hdmac.c                            | 11 +++--
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |  3 +-
 drivers/iio/imu/bmi160/bmi160.h                   |  7 +++
 drivers/iio/imu/bmi160/bmi160_core.c              |  6 +--
 drivers/mtd/nand/spi/core.c                       |  4 --
 drivers/net/wireless/marvell/mwifiex/join.c       |  2 +
 fs/exec.c                                         | 12 +++---
 fs/fuse/acl.c                                     |  6 +++
 fs/fuse/dir.c                                     | 37 +++++++++++++---
 fs/fuse/file.c                                    | 19 +++++----
 fs/fuse/fuse_i.h                                  | 12 ++++++
 fs/fuse/inode.c                                   |  4 +-
 fs/fuse/readdir.c                                 |  4 +-
 fs/fuse/xattr.c                                   |  9 ++++
 fs/proc/base.c                                    | 10 ++---
 include/linux/kdev_t.h                            | 22 +++++-----
 include/linux/rwsem.h                             |  3 ++
 include/linux/sched/signal.h                      | 11 ++---
 init/init_task.c                                  |  2 +-
 kernel/events/core.c                              | 52 +++++++++++------------
 kernel/fork.c                                     |  6 +--
 kernel/kcmp.c                                     | 30 ++++++-------
 kernel/locking/rwsem.c                            | 40 +++++++++++++++++
 25 files changed, 212 insertions(+), 104 deletions(-)