From: Allen Pais apais@linux.microsoft.com
The following out of memory errors are seen on kexec reboot from the optee core.
[ 0.368428] tee_bnxt_fw optee-clnt0: tee_shm_alloc failed [ 0.368461] tee_bnxt_fw: probe of optee-clnt0 failed with error -22
tee_shm_release() is not invoked on dma shm buffer.
Implement .shutdown() in optee core as well as bnxt firmware driver to handle the release of the buffers correctly.
More info: https://github.com/OP-TEE/optee_os/issues/3637
v2: keep the .shutdown() method simple. [Jens Wiklander]
Allen Pais (2): optee: fix tee out of memory failure seen during kexec reboot firmware: tee_bnxt: implement shutdown method to handle kexec reboots
drivers/firmware/broadcom/tee_bnxt_fw.c | 9 +++++++++ drivers/tee/optee/core.c | 20 ++++++++++++++++++++ 2 files changed, 29 insertions(+)