platform/chrome: cros_ec_proto: handle empty payload in getting cmd mask

cros_ec_get_host_command_version_mask() expects to receive
sizeof(struct ec_response_get_cmd_versions) from send_command().  The
payload is valid only if the return value is positive.

Return -EPROTO if send_command() returns 0 in
cros_ec_get_host_command_version_mask().

Reviewed-by: Guenter Roeck <[email protected]>
Signed-off-by: Tzung-Bi Shih <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

0 files changed, 0 insertions, 0 deletions