core: handle user TA context released from session

Change is_user_ta_ctx() to support NULL context reference. For such
references the function now returns boolean value false. This allows
caller to nicely abort their sequence when the context reference
is already released from the session instance. Note that caller shall
not assume a context refer to a PTA when is_user_ta_ctx() return
false, it shall call is_pseudo_ta_ctx().

A side effect is that few test on reference and function return value
can be simplified.

This change also ensures TA dump_state() function does not crash when
called provides a null context reference.

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>

0 files changed, 0 insertions, 0 deletions