tree 2688be4f7f15e3aee65134812ce469601a193947
parent 41bf7880f7249b2e1eda7424fc92d900a687270a
author Tadeusz Struk <tadeusz.struk@intel.com> 1550261307 -0800
committer Andreas Fuchs <andreas.fuchs@sit.fraunhofer.de> 1550594464 +0100

sys: change the order of sanity checks in Tss2_Sys_GetEncryptParam

The order needs to be changed for the ESYS to be able to
check if a given command supports param encryption i.e.
if the first sized param in a response can be encrypted.
This will be called by ESYS before sending the command to
adjust session flags, so it might be out of order, but the
logic here is to check if the error code is TSS2_SYS_RC_NO_ENCRYPT_PARAM
and if so clear the TPMA_SESSION_ENCRYPT session flag.
This check will be valid because the function will be called after
_Prepare call.
The spec does not enforce the order in which the checks need to
be performed, only what error codes can be returned.

Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>