[GIT PULL] TEE and OP-TEE fixes for v5.16

[GIT PULL] TEE and OP-TEE fixes for v5.16

[Jens Wiklander]

Hello arm-soc maintainers,

Please pull these TEE subsystem and OP-TEE driver fixes which by coincident
all are concerning memory shared with secure world.

There's one in particular nasty race fixed when a tee_shm is about to be
teared down.

Thanks,
Jens

The following changes since commit d58071a8a76d779eedab38033ae4c821c30295a5:

  Linux 5.16-rc3 (2021-11-28 14:09:19 -0800)

are available in the Git repository at:

  https://git.linaro.org/people/jens.wiklander/linux-tee.git tags/fixes-for-v5.16

for you to fetch changes up to 6add87fdae9bcb1d20b4503df5bd02ce5246cc8b:

  optee: Suppress false positive kmemleak report in optee_handle_rpc() (2021-12-16 15:32:48 +0100)

----------------------------------------------------------------
TEE and OP-TEE fixes for v5.16

- Fixes a race when a tee_shm reaches reference count 0 and is about to
  be teared down
- Fixes an incorrect page free bug in an error path of the OP-TEE shared
  memory pool handling
- Suppresses a false positive kmemleak report when allocating driver
  private shared memory buffers for OP-TEE

----------------------------------------------------------------
Jens Wiklander (1):
      tee: handle lookup of shm with reference count 0

Sumit Garg (1):
      tee: optee: Fix incorrect page free bug

Xiaolei Wang (1):
      optee: Suppress false positive kmemleak report in optee_handle_rpc()

 drivers/tee/optee/core.c    |   6 +-
 drivers/tee/optee/smc_abi.c |   2 +
 drivers/tee/tee_shm.c       | 174 +++++++++++++++++---------------------------
 include/linux/tee_drv.h     |   4 +-
 4 files changed, 72 insertions(+), 114 deletions(-)